Monday, May 20, 2013

A Letter To David Attenborough

Ever since she was four years old, my daughter has been wanting to write a letter to David Attenborough.

She has this picture hanging up on her bedroom wall.
Photo Credit: Kids Britannica

David Attenborough is an English broadcaster, naturalist, and popularizer of science. He has been on the air for 60 years, traveling all over the world and bringing the stories of the animals of the planet to millions of people. He is the creator of shows such as "Life on Earth", "Planet Earth", "The Frozen Planet", and many more. Here in the United States, his nature documentaries are narrated by people like Oprah Winfrey or Sigourney Weaver. However, it is David Attenborough who has spent a lifetime studying, admiring, finding, and sharing the stories of these animals and their habitats. He is a legend among naturalists and nature enthusiasts, considered a national treasure in Britain, and Kat's all time favorite film maker.

When we first began watching his programs, she was 3 years old. She loved "The Life of Mammals" and would ask me to play the series repeatedly. She loved the Pikas; when they came on the screen she would squeak at the wind and pretend to carry flowers in to her blanket burrow. When her friends would come over, they would all ask to watch "The Pika Show". My living room would quickly transform into a rocky mountainside, filled with squeaking, burrowing 4 and 5 year olds, pretending to gather food for the rough months ahead.

These animals are SO cute! It's no wonder little kids like to pretend to be them.
Photo Credit: North American Pika Consortium

Since then, we've learned quite a lot about Life on Earth, its animals and their habitats, as well as how living things grow and evolve. Kat has developed a deep love and appreciation for our fellow animals, and knows far more about most of them than I do! She can tell me about the habitat, diet, lifestyle, challenges, and mating habits of almost any animal I ask about. She loves learning about and watching animals, and treats them with the same consideration and admiration that she has been shown from the countless documentaries we have seen.

So, when my four year old came up to me with the idea of writing a letter to David Attenborough, I thought it was a fantastic idea! She could express how much she likes his programs, she could share her love for animals and desire to protect them, she could ask him questions about his favorite animals and plants... she could tell him anything she wants! The only problem, was that she was a four year old and she didn't know how to write yet. So, we put the idea on hold for a while as Kat learned how to read and write.

Over the next three years, Kat would bring up the letter to David Attenborough quite frequently. She kept it in her mind as she practiced writing letters and words; she held the goal as she later learned to write sentences. She even created a project called "Couch to David Attenborough" which, similar to the Couch to 5K running program, she would practice writing bit by bit, increasing the amount each day, until she was practiced enough to write her letter.

Finally, a couple of weeks ago, Kat decided that the time had come. "Mom, today's the day. I'm going to write my letter to David Attenborough!". She grabbed a cup of orange juice and her favorite pink pen and sat down with great purpose, ready to pen her letter.

She's finally doing it!

She wrote slowly, with great care and patience. She gave consideration to each statement and question, and considered the spelling before setting pen to paper. I was very impressed. The handwriting in this letter was the best I had ever seen from her. Clearly, this was something that meant a lot to her!

Great job on your letter kiddo!

When she finished with her letter, she began to work on some drawings to give to him. She drew a portrait of her with her three cats, as well as a picture of her and David Attenborough, surrounded by some of her favorite animals from "Attenborough's Ark". Finally, she printed out a couple of pictures of herself to finish her package off.

Kat's putting the finishing touches on her package!

Once we had everything together, it was time to head to the post office! Kat was bubbling over with excitement. She was actually doing it. After all this time, she had a package, addressed, paid for, and ready to be sent off overseas to London. Kat was sending her letter to David Attenborough!

This is the most excited I have ever seen anyone at the post office!

Kat was so excited that she was finally able to write her letter to David Attenborough. We knew that it would take a while for it to arrive in London, and we had no idea if he would actually get her letter. He's a very busy man! He could be off anywhere in the world right now, shooting a new series about the animals on our planet and our responsibility to protect them. We had no way of knowing if he would ever actually get her letter, but she was very happy to have finally been able to do it. This was a big accomplishment for her, a goal that she had held onto for an impressive amount of time, and she had finally done it. Good job, Kat!

After a while, the excitement from sending her letter settled down, and we got back into our normal routine of school work during the day and watching David Attenborough before bed. Every once in a while, Kat would ask if I thought he got her letter. The answer was always the same, "I hope so, but we'll have no way of really knowing sweetie. I'm sure he'll get it someday". Little did we know how soon someday would be!

Within two weeks of sending her letter to David Attenborough, Kat got an unusual envelope in the mail. It had no return address and it had U.S.A. written on the bottom of our address. Hm.. had this envelope come from another country? Wait... could this be what we think it is?


Dear Kat,

Thank you for your letter and your lovely drawings. I am so glad you enjoyed my programs. I think your best drawing was the OLM.

Thank you for it.

Best Wishes,

David Attenborough

Oh my goodness, Kat got a letter from David Attenborough!!! What an incredible and wonderful surprise! She was absolutely THRILLED! She jumped up and down and squealed in excitement. She hugged me over and over again with some of the tightest hugs she'd ever given. Then she told me that we needed to get a frame for her letter. She wants to hang it in her room next to her picture of David Attenborough!

This is a VERY happy and excited little girl!

I had often heard that David Attenborough frequently responds to fan mail. I didn't expect however, for him to respond to her letter within a week of receiving it! This was a huge moment for Kat. She got a letter, written from one of her favorite people ever, and he talked about how much he liked one of her drawings! It is so wonderful that he took the time to pen her a letter in return, and to give thought and care for the little girl who lives halfway around the world. What a nice man. Thank you so much Sir David Attenborough!

As for Kat, I am very impressed that she has held on to this goal for so long and finally realized it. That is some dedication! Throughout her trials and triumphs of learning how to write, this is something that's been a goal for her, in the back of her mind, ready for that "someday". That someday finally came, and it was spectacular. What a wonderful experience. She'll be able to treasure this for the rest of her life.

Great Job, Kat!


If you are interested in contacting David Attenborough, here is the address to reach him!

David Attenborough
David Attenborough Productions, Ltd.
5 Park Road
Richmond
Surrey, TW10 6NS
UK





Thursday, April 18, 2013

Tiny Stomps Can Make Such Big Splashes!

Preschool science for curious little minds...

I've often been asked for science activities and resources for preschool kids. Finally, I've decided to pool some of our favorite activities and resources together for parents of preschool and kindergarten age kids.


Me and Kat at the Science Center!
Photo Credit: David Venezia

Kat and I first began our adventures in learning together when she was 3 years old. This gave me a wonderful opportunity to really show her the many things that I love about the world. What I didn't expect was that I too, would begin to learn more than I ever thought possible, and that this would brighten my life in so many ways!

The wonderful thing about young kids is that everything is new and exciting! Kids want to know more about the world and are excited to be active participants in it. They want to stick their feet in mud puddles and squish their toes around in it. They want to pick up the ladybug crawling on the ground and take a closer look. Kids are natural explorers and they do a great job of finding things to be interested in (even if it's something they're not supposed to be getting into!). The wonderful thing about this is that every time you go outside, you're presented with a wonderful opportunity to teach your kids about the world and how to care for it.

Within this post, you will find a sampling of some of our favorite activities pertaining to Life Science, Chemistry and Math. We did all of these when Kat was around 4 or 5 years old. At the end of this post, I will list a few of my favorite resources that I've used for science, school activities, and reading. Learning with your kids can be so incredibly rewarding and if you're having fun, your kids will have fun too!

Here are some things that I bought for Kat when she was younger, and I highly recommend these for kids of any age!


Kat at 4 years old, examining the insides of broken rocks

Microscope - Kids love building things with blocks, and in my experience, love learning that WE are made of building blocks too! Cells are like legos, grouping together, building, growing, clustering, until finally they make something like your heart, your eyes, even your hands and feet! Every living thing is made up of cells, but don't take my word for it - go out on your own and see what you can find! What does it look like on the inside?

Magnifying Glass - This is something that is far more portable, take it with you when you go on walks with your kids. You can get a closer look at pollen, lady bugs, leaves, all sorts of things!

Clipboard - I often brought a clipboard with some white paper and a pencil on our walks. Kat could sit down and draw anything she liked. If she saw a bird or a pretty flower, we could sit down and draw it. Even if those drawings are little scribbles, your kids are paying attention to the world around them, and taking in small details that they may not have noticed before.

Safety Goggles and Latex Gloves - With any experiments you're likely to do, you'll need to have some safety equipment. It's never to early (or too late!) to start thinking about safety; even baking soda and vinegar experiments can hurt if the materials get in to your eyes. Start your experiments with an attitude of keeping safety first!

Ingredients - To this day, I always have baking soda, vinegar, food coloring and cornstarch in my house. These things are so much fun to play with, and there are so many ways that you can experiment with them! With these ingredients you can make volcanoes and oobleck, and you can conduct fun and safe experiments! What about causing a volcano under a layer of oil, would that work? What happens if you took iron filings and added some to your oobleck? Could you make it move with magnets? There are so many great things to try with just these staple ingredients, and the mess is easy to clean up too!

LIFE SCIENCES

Kat grew up with a strong affection towards animals, always wanting to look at them and play with them. We began watching a lot of nature documentaries narrated by David Attenborough, whom we still watch to this day. Because she loved animals, I thought it would be fun to learn more about them and their habitats. This led us to learn a lot about our animal friends, the areas they inhabit, and instilled a very strong desire to protect the world that we all live in.

THE HABITAT GAME

Materials Needed:

1. One pack of index cards
2. Markers in assorted colors
3. A room with four walls

Instructions:

1. Make 4 habitat cards: Forest, Pond, Ocean, Desert.

2. Think of as many animals as you can! Write them all down on separate index cards.

3. Tape your habitat cards on different areas of your room (one on each wall).

4. This is the fun part - take turns drawing animal cards! When you pick one, read the name of the card aloud, then act like the animal on your way to its proper habitat. Tape the animal card to the appropriate wall. You may find yourself running on all fours or flapping your wings like a bird. Make animal noises and be silly!

As your kids get acquainted with the animals and their habitats, make it more challenging! Add more animals and habitats, or make them more specific (fresh water/salt water, jungle/forest, arctic/tundra). While you're playing, discuss what about the animals makes them perfectly suited to their habitats. Maybe they have excellent camouflage, or they're nocturnal hunters, or they eat a lot of fruit which is plentiful in a jungle. Mix it up and have fun!

Another great way to learn about habitats is to paint them! Kat loves animals and she loves painting, so this incorporated things that she really likes into her school. You can purchase inexpensive acryclic (or tempera, which is washable) paints at most hobby stores. Canvases and brushes can be found cheaply at art supply stores, or you can get a piece of poster board and use that.

Our habitat painting is still on Kat's bedroom wall!

Kat and I painted each habitat in one corner of the canvas. On a separate piece of paper, we tried to draw different animals that might live in each habitat. Then we colored those and glued them on to our painting.

As you discuss different animals and their habitats, you might want to take a look at the stuffed animals that are already in your home! What might their habitats be? Do they have any camouflage? What do they eat? One of Kat's favorite activities that we did when learning about animal diets was grouping her toys according to what they ate.

We're meat eaters! GRRRRR!

We grabbed 2 poster boards and painted a giant herbivore landscape on one, and a carnivore landscape on the other. When we were finished, we put each board on opposite sides of the room. Then we grouped Kat's stuffed animals according to what they ate and put them near their signs.

Of course, the best way to learn about animals, camouflage, life cycles, and diets, is to observe them in their natural habitats! You can do this at zoos, at the park, or even in your own back yard! Our favorite way to do this is by growing a garden. With a garden, your child can get their hands dirty, watch excitedly as seedlings sprout from the ground, and even find little insects enjoying a meal.

Hey, thanks for the Sunflowers. These are delicious!

Perhaps if you do find a lot of little munchers, you can then add more insects to your garden by purchasing a container of lady bugs or praying mantis oothecas (egg sacs). Your child will be enthralled by the lady bugs (let your child pick them up and play with them, it's a wonderful sight to see your kid covered in lady bugs!) and will be really excited to see the tiny praying mantis nymphs emerge from the egg sac. These beneficial insects will act as a pest control in your garden, munching on the munchers!

CHEMISTRY

Kids love chemical reactions. With the fizzing, bubbling, and spilling that often accompanies them, they're a big hit for kids and adults alike! The nice thing about chemical reactions, is that not only do you get to see the results of chemistry happening right in front of you, but you can really participate in the scientific method by changing measurements and materials to actively experiment!

As you get into your explorations in chemistry, it's a good idea to talk for a minute about atoms. Do you remember how we talked about cells being the building blocks of living things? Atoms are the building blocks of cells - atoms are the building blocks of everything! A good way to talk about atoms, is to talk about the 3 states of matter.

Solid: Take both of your hands and clasp them together, interlocking your fingers, and holding them as tightly as you can! See how your fingers can't really move? That's how the atoms are structured in a solid (generally speaking). They're locked in!

Liquid:
Okay, now take your fingers and relax them a little. Wiggle them around a bit. See, now the atoms are relaxed, they're just hanging out, being all groovy. This is (generally speaking) how atoms are structured within a liquid.

Gas: Okay, step away from each other for a minute. Now throw your hands and fists around as fast as you can! Make loud pew! pew! pew! noises as you do it! Your atom hands are flying around at incredible speeds, they can hardly contain themselves! This is (generally speaking) how atoms are set up in a gas.

Now would be a good time to take a moment and think of things that represent each phase of matter. What are some things that you can think of that are solids? What are some liquids that you know of? What are some examples of gasses? Take a piece of paper and divide it into 3 sections. Label the sections as Solid, Liquid, and Gas. Draw pictures of the examples you've thought of, along with what the atoms might look like inside of them.

Yes Kat, tooting is a gas.

Now that you've got some basic understanding of atomic structures, it's time to start playing! Get your baking soda, food coloring, and your vinegar together. Talk about how the atoms are structured in the baking soda and in the vinegar (use your hands!). As you combine the two materials together, what happens? What's happening to the atoms within them? They're bumping into each other, faster, faster, and then they explode out as a carbon dioxide gas! Look at that!

Pew! Pew! Pew! Those atoms moved so fast they couldn't sit still anymore!

A great variation of this chemical reaction is the elephant toothpaste demonstration from Science Bob. This one uses hydrogen peroxide and yeast. The reaction that results not only releases Oxygen, but also creates a small exothermic reaction, making your results warm to the touch!

Another really fun demonstration to do is the Density Column. Atoms are clustered together in various ways, and the density of an object simply relates to how tightly packed together those atoms are. Some liquids have a tighter structure than others and you can demonstrate this by making a rainbow of fluids right in your kitchen!



DENSITY RAINBOW OF SCIENCE!

Materials Needed:


1. 1/4 cup dark liquid corn syrup, honey, or boiled sugar water*
2. 1/4 cup liquid dish soap
3. 1/4 cup water
4. 1/4 cup vegetable oil
5. 1/4 cup rubbing alcohol
6. Tall 12 oz clear glass cup
7. 2 other cups for mixing
8. Food Coloring
9. Safety Goggles
10. Latex Gloves

* We didn't have corn syrup or honey on hand. Instead, we made a sugar water mixture by bringing 1/2 cup of water to a boil and slowly dissolving 1 1/2 cups of sugar, stirring constantly. We let it cool to a warm temperature, and used an extra cup to mix in some food coloring.

Instructions:  

1. Put on your safety goggles and latex gloves!

2. Pour water and rubbing alcohol into your two extra cups. Using different colors, mix in a few drops of food coloring into each liquid.

3. Add the syrup/honey to the 12 oz. glass.

4. Slowly pour dish soap over the syrup. I recommend slightly tilting the glass and pouring down the side. I did this for every step. You do not want the liquids to mix during this demonstration!

5. Slowly pour water over the soap.

6. Slowly pour your vegetable oil over the water.

7. Slowly pour the rubbing alcohol over the vegetable oil.

Steve Spangler has an awesome variation of the density column where he floats objects of various weights on the different layers in the column! Kat and I will be trying that out the next time we do this, it should be really fun!

(A note on chemicals: Chemistry is really fun to play with, but stick with the safe stuff and know what you're doing. NEVER COMBINE HOUSEHOLD CHEMICALS WITHOUT MAKING SURE THAT IT IS SAFE TO DO SO. Baking soda and vinegar, and yeast and hydrogen peroxide are perfectly safe to use with your kids, just make sure they are wearing protection!)

MATH

Math concepts are really fun to use with your kids. They really love experiencing things outside, so that's where I try to take our math as often as possible. We can use math to measure how tall we are, how long our walking strides are, or how far we can throw something! You can measure things with rulers, spoons, leaves, toothpicks, whatever! You can also look around and see what shapes you can find. When your preschooler is learning about shapes and sizes, try taking them outside and looking for shapes in the neighborhood!

Look Mom! My arms are covered with tiny circles!

Once you look around your neighborhood, try taking them on a shape safari! I used to take Kat on the bus and ride around town, looking for various shapes in buildings, signs, gardens.. we'd look for them everywhere. Grab a clip board, a pen and paper, and make a checklist of all the shapes you want to look for. Then go find them and check them off! When you're done with that, try making various buildings and houses out of shapes by drawing them on your paper. Which ones would be the most sturdy? Which one would you like to live in?

I want to live in a house that won't fall down!

While you're out and about in your neighborhood, take a good look at the houses around you and how the streets intersect. There sure are a lot of houses in your neighborhood, aren't there? What are some of your favorite things about where you live? Is there a park nearby? Is there a pool or a lake for swimming? Do you have a lot of trees in your neighborhood? If you and your child could plan a small neighborhood for their toys, how would you do it?




A TOWN FOR TOY ANIMALS!

Materials Needed:

1. Poster board
2. Paint (acrylic or tempera)
3. Pencil
4. Ruler
5. Cardboard or thick cardstock
6. Scissors
7. Box Cutter (if using cardboard)
8. Hot Glue Gun (for the grown ups!)
9. Decorative craft supplies

Instructions:

1. Plan out your neighborhood for your child's toys. How big do the houses need to be for their toys to fit in them? If you make really big houses, how many can you fit on your block? Do you want to make a space for a park? How big will that be? Use your ruler to demonstrate how big everything will be and what that will look like on your board.

2. Use your ruler to mark out your sections for your houses and roads.

3. Paint! Paint grassy areas green, sandy areas brown, and your roads black with the appropriate road markings for your area.

4. Build your houses! Measure and mark out where you want to cut your cardboard. After you cut your sections, then use the hot glue gun to glue the pieces together. Once you have your houses built, let your child paint them.

5. Set up your neighborhood! You can get as creative as you'd like here. Kat and I made a working park with swings and a slide, and a little grassy hill.We collected sand and gravel from outside and used it to make a sand lot at the park! Here are some more detailed instructions on how we made our town.



When you're finished setting up your neighborhood, play in it! Get your kids' toys and "live" in the houses for a while. Go on a walk to the park in your new neighborhood, or go next door to meet the animals who live across the street! You and your kids can feel a well deserved sense of pride for your beautiful little town that you made with math, art, and imagination.

LINKS AND RESOURCES

Spending time with my young and inquisitive preschooler has given me a unique opportunity to try teaching her in a way that was really comfortable; by just experiencing the world and seeing where we wanted to learn more. I also found a lot of inspiration from other places. I'd like to share a few of them below, so that you can use them for your own inspiration with your kids!

Education.com - This was, and still is, a wonderful site full of fantastic activities and ideas for young kids! I found so many things to do here! There are ideas for math games, science games, and reading activities. Some of their activities include making your own puppets or mosaic art, making your own play-doh and paints! You can sort by grade level and subject, to tailor your results.

Science Bob - This guy is awesome. He's a public access science personality, bringing science to kids and parents and making it fun along the way! My daughter loves watching his videos and loves to pick science projects from his site. He is an an overall great resource for parents with young scientists.

Momma Owl's Lab - This is a mom who teaches her young kids at home and does a wonderful job of it! She has a ton of really cute and really fun preschool science ideas.

Chemistry For Kids - This site is great at explaining chemistry concepts in a way that is really easy to understand. It may not be for the preschoolers, but it is an invaluable resource for parents who would like to explain things to preschoolers! There is also an Earth Science, Biology, Physics, and an Astronomy variant of this site, make sure to look to the bottom of the page for those links!

Starfall.com - This site was AWESOME for when Kat was learning how to read. She loved their cute videos and songs, and it was incredibly helpful for when we were learning all those reading concepts when she was younger! She's an avid reader now, and this was a big help for us.

DIY.org  - This site wasn't around when Kat was younger, but if it was, we would have used it all the time! Kat loves getting ideas of projects and activities from here. This is a build/make/grow website designed for kids, with projects made and shared by kids! Preschoolers might be a bit young to use the site, but you can get a lot of great ideas from kids who are on it.

Learning with your kids is so much fun and so incredibly rewarding! Kat and I have had a wonderful time as we learn and grow together. I have found that being an active participant in the world with my daughter has brightened both our lives in ways we couldn't have possibly imagined. So go learn something with your kids, get outside, get dirty, and most of all, HAVE FUN!




Happy Learning!








Wednesday, April 10, 2013

A Look Inside The Crystal Shard

Kat and I have been spending quite a lot of time outside lately, examining and collecting rocks. We're captivated by the glittering greens, deep reds, and dramatic blacks that we see all around us. The type of rock that has most captivated Kat however, is the sparkling white of the Quartz Crystal. When she was 4 years old, she would go on collecting expeditions with her friends, amassing large piles of the white rocks. As she's grown older, she's used them to create land art, or line her garden. It came as no surprise to me that when we were contemplating our next week of geology study, that Kat suggested we study crystals.


Most minerals occur naturally, in their purest forms, as crystals. They can form in a variety of ways. Sometimes crystals are formed deep within the Earth, where intensely high pressures can cause the atoms of the minerals to align in a close, symmetrical pattern. A common example of crystals forming in this way is the diamond, formed when carbon sources are pushed together under such high pressures that they break down, pushing the atoms as close together as possible. Other crystals are formed when magma cools slowly, allowing the atoms of the elements within the magma to cluster together, growing symmetrically. In this instance, the shape of the crystal is dependant not only on the way the atoms lock together, but also on the room they have in which to grow. Some crystals can get very large if there is enough space.

Still other crystals are formed when a mineral rich liquid solution begins to evaporate, or can no longer support the mineral in a dissolved liquid state. In this process, nucleation is what allows the crystals to grow. Minerals will sometimes dissolve when immersed in a liquid state. When they do, the atoms from those minerals will lock on to the water (or other liquid) molecules and lose their solid structure. As the water evaporates, the atoms of the minerals will slowly come together. Once there is a large enough number of them, they will begin to attract more atoms of that mineral at a faster rate. These atoms will link together in regular patterns, forming crystals. This process is called Nucleation and there are some really cool activities that you can do at home in order to observe this process in action...


A CRYSTAL FOREST

Materials Needed:

1. 3 Tbs household Ammonia (NH3)
2. 1 Tbs table salt (NaCl - Sodium Chloride)
3. 3 Tbs laundry bluing (I used Mrs. Stewart's)
4. Paper plate
5. Cleaned toilet paper tube
6. Well ventilated area
7. Safety Goggles.

Procedure:

1. Put on your safety goggles!

2. Clean your toilet paper tube of any remaining bits of paper. Tear the top half into strips, approximately 1" in length.

3. Using your tablespoon, measure and pour the ammonia and bluing on to the paper plate. Make sure you are in a well ventilated area or next to an open window! Ammonia is incredibly potent with its burning odor.

4. Add the salt and gently stir the solution.

5. Place your toilet paper tube in the center of your plate and wait.

What's happening?

The salt crystals dissolve in the solution. As the liquid evaporates, the atoms begin to regroup together to reform into salt crystals. However, the addition of the bluing and ammonia also adds salt crystals! The ammonia reacts with the bluing and breaks down the iron and sodium, so that the sodium can be added to the table salt for faster nucleation! Here is a neat time lapse video of the crystals forming on the toilet paper roll. You'll be able to see that there is one starting point where the atoms begin to group together, resulting in crystal growth. Once that nucleation occurs, other crystals quickly begin to add on as they become attracted to the initial site of nucleation.

There is another demonstration you can do to see this process in action, although this one runs the course of several days instead of 24 hours. The nice thing about this demonstration is that you can use different materials to see which will generate better crystal growth. We used four different surfaces and were pretty surprised with the results...


SALT CRYSTAL GARDEN

Materials Needed:

1. 1 Tbs household Ammonia (NH3)
2. 1 Tbs laundry bluing (this will stain your tablespoon)
3. 1 Tbs table salt (NaCl - Sodium Chloride)
4. 1 Tbs Distilled Water
5. A plastic container or shallow aluminum pan to hold your garden
6. A surface for the crystals to grow on (we used charcoal, sponge, clay brick and cement brick)
7. Safety Goggles
8. Hammer (if using a brick or charcoal)
9. A dry, covered area area outside for the storing of your crystal garden
10. Food coloring (optional)

Procedure:

1. Put on your safety goggles!

2. Clean your pan of any crust, stickers (if new), or plastic.

3. If you're using bricks or charcoal for your garden, you'll want to take them outside and break them into smaller (about 1") pieces. You'll definitely want your goggles on for this as tiny sharp rocks will be flying from your bricks. I hammered chunks off the brick and let Kat hammer a chunk off the charcoal.

4. Take your supplies outside and get to work! Start by pouring 1 Tbs of Ammonia, 1 Tbs Bluing, 1 Tbs Distilled Water, and 1 Tbs of Salt into the pie pan.

5. Now you can begin placing your surface pieces in the pie pan. You'll want to place them so that they are at least 0.5" apart.

6. If you would like to add a splash of color to your garden, now is the time to add the food coloring! Place one drop of color onto each surface.

7. Wait. Within a half hour, we began seeing results. Within 24 hours, the results were stunning!

This was how great our crystal growth was after only 24 hours!
This was the cement brick, which gave the best results.

Make sure you "feed" your crystal garden daily. Add the same amount of ingredients as you did when you started the project, and keep going until you either run out of bluing or are done being entertained with your crystal garden. We found that at first, the materials we used differed greatly in crystal growth. The cement brick yielded the best results, followed closely by the clay brick. After a few days however, everything had pretty much evened out. The sponges, however, yielded very little crystal growth. I don't think we'll be using those again in the future!

As we were monitoring our crystal gardens, we couldn't help but marvel over the delicate crystal formations that were growing on the surfaces. When our paper towel roll "bloomed" it looked like a beautiful forest of soft crystal trees. As our outdoor garden grew, it quickly began to resemble the beautiful corals of the Great Barrier Reef. It was so wonderful to see the beauty that could result from such atomic arrangements. I wondered if we might be able to watch the progress under the microscope. I had never tried a crystal garden on a slide before, I wasn't sure if it could be done, or if we could even view the crystals as they grew...

As it turns out, you can! Our garden looked so beautiful set on the slide.

A GARDEN THROUGH THE MICROSCOPE

Materials Needed:

1. A microscope
2. Microscope slides
3. Glass medicine dropper (we got ours at a pharmacy, it was under $2)
4. Household Ammonia (NH3)
5. Laundry bluing (will stain the dropper)
6. Distilled Water
7. Table salt (NaCl - Sodium Chloride)
8. A surface for your crystals will grow (we used brick, charcoal, toilet paper, and a sponge)
9. Latex gloves
10. Safety goggles


Procedure:

1. Put on your latex gloves and safety goggles!

2. This is going to closely resemble the larger crystal garden. You'll want to break off tiny pieces of surface material. We chipped off a small piece of brick and charcoal, and ripped off tiny pieces of the toilet paper roll and sponge.

3. Take your eye dropper and drop one drop of each liquid on to the slide. As in the above experiment, everything is at a 1:1 ratio.

4. Add your surface materials to the slide.


5. Sprinkle 1 drop's worth of salt over the liquid and surface materials.


6. Wait. Check the slide under the microscope periodically, monitoring for crystal growth. Within minutes, we were able to see some beautiful structures develop.

Crystal growth, stage 1.

In the above photo, you can see some of the nucleation taking place. Crystal spikes are starting to reach out and form pretty patterns. My favorite thing about this photo though, is that you can also see the salts that have been broken down by the chemical reaction between the bluing and the ammonia. These tiny salt crystals were everywhere!

We checked under the microscope every few minutes. Because there was so little liquid to begin with, evaporation and nucleation occurred at a rapid pace. Within twenty minutes a full crystal garden had developed and we were able to see some stunning pictures at the microscopic level! Here are some of the larger crystals (these are the white crystals you see billowing out on the slide):


My favorite picture of all though, came from the garden after it had set. We could see the crystal garden in its larger form above, but we could also see some of the smaller crystals as they were beginning to form around it. Because we had such small amounts of liquid and the evaporation occurred so quickly, these crystals were sort of frozen in formation and they were stunning!

It's a superstar sparkly pattern of SCIENCE!

Looking at the crystals in this way was incredible. Not only could we see the stunning crystal forests grow in their larger forms, but it was thrilling to also be able to see them up close and in such detail under the microscope! Kat and I were both squealing in delight as we looked in the microscope and saw each new sparkly pattern emerge!

As we learned more about how crystals form and where they can occur in nature, it has made us really appreciate them when we see them. Sometimes, when we see crystals in the ground, we're looking at time, heat, and pressure, and these effects on the structure of atoms. When we season with salt, or sweeten with sugar, we're ingesting the results of mineral soaked solutions evaporating over time. Getting a really good look at the results of these processes has allowed us to really appreciate things in a fuller way. There is beauty all around you, you just have to look for it!

These were in our sugar sprinkle jar!

It may just be in your kitchen cabinets, as gems waiting to be discovered.








Thursday, April 4, 2013

Baking With Geology!

A couple of weeks ago, Kat and I began our big geology project. We learned a lot about the geological history of Arizona and even took our lessons to the field! While examining the outcrops around us, we talked a lot about the layers of the Earth and plate tectonics. We talked about how layers of the crust may have been thrust upwards as plates moved into each other (uplift) and how some layers would sink under others as they moved lower to the mantle (subduction). However, as I was explaining these concepts to my daughter, I realized that she would have a much easier time understanding it if she could see these geological processes at work. So, we spent an entire week in the kitchen cooking up concepts for understanding geology!

The Earth's crust is divided into four major layers: the crust, the mantle, the outer core, and the inner core. The Crust is approximately 5-30 miles thick, being the thinnest at the oceanic layer (up to 5 miles thick) and the thickest at the continental layer (up to 30 miles thick). The crust contains all of the dirt, sand, pebbles, rock, and bedrock that we typically think of when we consider the Earth's crust. The mantle is approximately 1,800 miles thick and is made up of not-quite-solid not-quite-liquid rock. This thick, viscous rock moves around by convection (as it rises toward the crust it cools, then falls back down to heat up again), which is what moves the plates around on top of it. The outer core is approximately 1,400 miles thick and made up of liquid Iron and Nickel. The inner core is approximately 900 miles thick and made up of a solid, incredibly dense ball of super hot Iron and Nickel.

The layers of the Earth.
Image Credit: Discover Magazine

Now these are all pretty basic things that we read when learning about the layers of the Earth, but what does it really mean? How do you get a grasp on those distances, those layers, and what that even looks like? The first method we used was by Googling how far each of those distances were from our city. Then we put the two places in Google Maps to get an idea of what that looks like. For us, 1,800 miles would take us all the way to Columbus, GA, which is almost all the way across the continental United States! 1,400 miles took us to Demoines, IA, and 900 miles took us to Cottonwood, CA. Putting these places into Google Maps gave us a great visual representation for how thick each layer of the Earth is and how far we would have to go to traverse those distances.

Once we had the distances covered, what about the layers themselves? What would these layers look like? For this question, we had to get in the kitchen and make ourselves a cake!

This is our epic geology cake of SCIENCE!

A LAYER CAKE OF EARTH

Our layer cake was inspired by this recipe, given by the Department of Earth Sciences at Clemson University, South Carolina.

Materials Needed:

This is where you get to have fun and be creative! Think about the layers of the Earth and what they are made of. Where can you find liquid rock? What about rock that is flexible and plastic like? Where can you find fossils? Maybe you can play around with adding fossils into the layers of your cake for your kids to dig out. Whatever you decide, be prepared to have fun and get MESSY!

1. Sponge cake mix (or any sturdy cake mix) and the ingredients needed to prepare it
2. Small cake ban or bread pan (we used a bread pan)
3. Non-stick cooking spray
4. Newspaper or foil to cover your work surface with
5. Something to use as a liquid layer (we used both icing and butterscotch pudding)
6. Food coloring
7. Something to act as rocks and bedrock (we used nuts)
8. Something to use as dirt (we used cookies)


Here are all of our ingredients needed to represent the layer of the Earth.

Procedure:

1. Prepare your cake batter according to the directions on the box. Pour a thin layer (approximately 1/2 inch in your bread pan. If you choose to do so, you can add a few drops of food coloring to color your layer.

2. Bake your half inch cake at the temperature that is recommended in the instructions for your cake mix. We baked ours for 10 minutes, using the toothpick test to make sure it was done.

3. When your cake is done, dump it on to your work surface and add another half inch layer of batter. Color this if you choose, and bake it again for approximately 10 minutes (or until done). Repeat until you have 3 layers of cake.

4. Now it's time for decorating! One of these layers will be the inner core, another will be the mantle, and the final layer will be the crust. It's up to you to decide what goes in between all of it! Color your frosting, add pudding, add some chopped nuts or marshmallows for your rocks and fossils. Get creative and get messy!

The final step of course, will be the most fun, as you and your kids get to dig into this gigantic cake of Earth!


Kat was really excited to be able to shove her face into this messy cake!

Once we finished our model of the layers of the Earth, it was time to talk about Tectonic Plates. Throughout the Earth's history, the thick land masses have moved around, crashing into each other, pulling away from each other, and forming volcanic rings and deep chasms. We also know that at various points throughout Earth's history, some or all of the large land masses were connected together. We know this because of unique rock layers on matching coastlines, the fossil record, and because the tectonic plates look a lot like puzzle pieces that could fit together!

We found a really great way to demonstrate this at home and we already had all of the supplies in our kitchen!




MAPPING THE TECTONIC PLATES

Materials Needed

1. Play dough in various colors (We made our own using the recipe at the top of this page)
2. A map of the tectonic plates (we printed this map, the large boundaries made it easy for tracing)
3. A labeled map of the tectonic plates (we used this map)
4. Scissors
5. Rolling pin
6. Sharp knife (such as a paring knife)
7. Pen and paper



Instructions:

1. On a separate piece of paper, write down the names of each tectonic plate. Cut the names out into individual strips and set them aside. You will be using these as labels for your plates at the end of the project.

2. Cut the individual tectonic plates out from the unmarked map. Set these in a pile.

3. Pick out a tectonic plate from your pile. Roll out a piece of play dough so that it will be approximately the same size as your plate. Place the tectonic plate cut out over the dough.

4. Using the knife, carefully cut along the edges of your paper, tracing the tectonic plate into your play dough. As you peel away the excess dough, you should have what looks like a detailed tectonic plate!

5. Compare your play dough pieces to the tectonic plates on the labeled map. When you've found the plate that matches yours, grab the piece of paper in the label pile and set it on to your tectonic plate.

6. Once you've gone through all of your tectonic plates, piece them together to mimic where they are now. See if they might fit together differently. How would the tectonic plates have looked when the continents were all landlocked together as they were when they formed the supercontinent Pangea?

Finally, we reached the last part of our week of kitchen geology. After talking about the layers of the Earth and tectonic plates, it seemed like a natural progression to go over the three types of rock as well. What better way to get a grasp on Igneous, Sedimentary, and Metamorphic rocks, then to make them in our own kitchen?




 IGNEOUS MELTDOWN!

The first set of rocks we would be making would be liquid lava Igneous rocks! A good friend of mine at The Ard School of Arts and Sciences provided this adorable and awesome recipe for Magma Candy, which I've been given permission to reprint below.

Materials Needed:

1. 1/2 cup of Karo corn syrup
2. 1 cup of sugar
3. 1 tsp of water
4. Glass 2 cup measuring cup (one that will withstand high heat)
5. Oven Mitts
6. Aluminum Foil
7. Metal spoons

Instructions:

1. Cover your work surface with foil.

2. Mix all of your ingredients in a heavy 2 cup glass measuring cup.

3. Microwave on high power for 3-7 minutes, depending on the power of your microwave (for us it was 6 minutes)

4. Test your magma! Carefully drop a spoonful of the magma into a cup of cool water. If it forms a puddle or blob, microwave for 1-2 more minutes. If it makes a crackling sound and seems to magically freeze into a shape, you are ready to rock.

Get Creative! After drizzling spoonfuls of magma on to your work surface, add some food coloring and swirl it around. What kinds of swirly color patterns can you make? You can also create works of igneous art by making spun sugar creations. Watch this video for instructions!

Note on Safety: When this "liquid magma" comes out of the microwave, it will be VERY HOT. If it spills on you it will cause burns! The transport of magma from microwave to work area should only be done by an adult wearing oven mitts on both hands. This is a very fun and very easy magma demonstration, but please take precautions!

To clean your cup, simply soak it in sudsy water. After a short while, all of the sugar will be dissolved by the water.

When we were finished playing with (and eating) our magma candy, it was time to clean up and move on to building our sedimentary rocks!



SEDIMENTATION STATION!

Materials Needed:


1. 4 paper/plastic cups
2. Plaster of Paris
3. Water
4. Layers of sediment (we used sand, gravel, chalk, and dirt)
5. Food coloring (optional)
6. Rubber/latex gloves

Instructions:

1. Put on your rubber gloves. Plaster of Paris will dry like cement, you don't want this stuff drying on your skin, or your clothes.

2. Divide your layers into your plastic cups. One cup should house one type of sediment. If you would like to add color to your sand, add 1-2 drops of food coloring and shake to coat.

3. In one of your cups, mix your plaster of paris according to the directions on the package (we used a 2:1 ratio of plaster to water)

4. Beginning with your sand layer, begin mixing your plaster of paris with your layers of sediment. Mix to a desired consistency, make sure you have enough plaster to allow for cementation, but not so much that you completely cover the materials. 

5. Mix a small amount of plaster with your gravel. Scoop it out of the cup and layer it on top of your sand. Don't stir it, as you don't want to mix everything together. Just past it down with your spoon until you have an even layer. Repeat the process with the rest of the sedimentary layers.

6. Allow your sedimentary rocks to dry overnight. This will be a very sped up process where the sdeiments will bind together with the plaster acting as a glue. What would normally take thousands of years has just happened in your house overnight!

Finally, when we were finished with our sedimentary rocks, it was time to change things up a bit! This next demonstration comes from our home school science classes at The Arizona Science Center. All it takes is some a lot of heat, a little bit of pressure, and a candy bar...



UNDER PRESSURE

Metamorphic rocks are igneous or sedimentary rocks that are subjected to extreme heat and pressure. In this demonstration, we'll be subjecting a candy (or granola) bar to these processes in order to force a metamorphic change to our "rock".

Materials Needed:

1. Snickers Bar (or layered granola bar)
2. Foil
3. Pan
4. Stove

Instructions:

1.  Break your candy bar in half. Examine the layers of your sedimentary rock.

2. Wrap your rock in aluminum foil. Put your pan on top and press down hard! This will mimic the pressures found deep within the Earth.

3. Open your foil and examine your newly pressed rock. How have the layers changed? Are there any rocks you've seen in that remind you of this?

4. Put your pan on the stove and turn it to med/high heat. Rewrap your candy bar in the foil and add it to the pan. Let it heat for 7-10 seconds.

5. Remove the foil from the pan and open it. What happened? As your rock cools, observe how it has changed through heat and pressure.

6. Eat the other half of your candy/granola bar!

These lessons gave me and Kat a better idea about the concepts of plate tectonics, the layers of the Earth, and the three types of rock and how they're formed. Learning geology out in the field is really fun, but it's even better when we have a good grasp on how the mountains, rocks, and land masses were formed. Then we can look around and really be able to read the stories that the rocks have to tell.

The best part of all though, was being in the kitchen making a mess and having a great time! We made a monster of a geology cake, magma candy, our own sedimentary rocks, and our own tectonic plates that we got to crash together, all in the name of science! I'd say that's a pretty great week.





Happy Baking!







Sunday, March 24, 2013

Geology ROCKS!

“Rocks are records of events that took place at the time they formed. They are books. They have a different vocabulary, a different alphabet, but you learn how to read them.”
-John McPhee


Let's go kids! We're going on an adventure, back in time!

A few weeks ago, Kat and I decided that we would take on a new project and learn about the the geology of Arizona. We would learn about how the land was formed, the various changes it has gone through over the billions of years since its formation, and then visit various sites in the valley to look for geological evidence in the rocks. As we began planning the first part of our trip, we gained a school partner for our studies. My niece would be joining us for Spring Break, which meant we had an entire week to include her in our field trips! We decided to begin our lesson at Dreamy Draw Park, a beautiful hiking and recreation area located at the base of Piestewa Peak.

The rocks of Dreamy Draw were largely formed during the Precambrian Era, a huge length of time stemming from the beginning of Earth's formation approximately 4.5 billion years ago and ending approximately 600 million years ago. The oceans and atmosphere were formed during this time, as well as Earth's magnetic field, the tectonic plates, and the land masses.The bulk of Earth's geologic time is contained within the Precambrian Era. Long before the first dinosaurs roamed the Earth and the first fish were swimming in the oceans, even before the first trilobites appeared, North America was just beginning to take shape. After many hundreds of millions of years, when the rocks of Dreamy Draw were forming, the only life forms on Earth consisted of bacteria, algea, and primitive microscopic rooted organisms (something like a very primitive sea cucumber). During this time, Arizona was located near Antarctica and Antarctica was near the equator!


A map of the continental organization approximately 650 million years ago.
Image Credit: Tucson Citizen


During the late Proterozoic Era, Arizona was covered by a shallow sea, and over the course of hundreds of millions of years, the land changed dramatically! Volcanoes formed and erupted, lava veins burst open, seeping boiling magma into the depths of the ocean. Subduction zones formed as huge swaths of land pulled away and pushed into and under each other. Mountains jutted upward only to be eroded millions of years later, leaving only traces of their former glory in the form of rocks, hills, and the mountains of the Phoenix area.

 I followed the studies of two geologists, Dr. Stephen Reynolds and Julia Johnson, as they surveyed the land and identified the formations, mineral veins, and rocks that make up the Phoenix mountain chain. I was fascinated as I read about how Dreamy Draw specifically contains many rocks from both oceanic and continental origins. That would mean that Dreamy Draw was at one time, a place that was transitioning from an oceanic zone to a continental zone!


Arizona geography during the late Proterozoic Era
Image Credit: The Arizona Experience Paleogeograhy Timeline


Some of the oceanic rocks included Greenstone (greenish metamorphic rock, formed by pressure and warm liquids, usually in oceanic areas), Ferruginous Quartz (a quartz with red, brown, or yellow veins which are deposited by iron rich water), and Meta-Mudstone (mud stone that has undergone a metamorphosis, changing the original properties of the rock).

Some of the continental rocks included Gray and Tan Phyllite (metamorphic rocks with reflective mica, usually found at the eroded base of ancient mountain collisions), Schist (a metamorphic rock that usually originated in mudstone/shale and has undergone intense heat and pressure), and Orthoquartzite (one of the purest forms of quartz, yet mixed with sandstone, thus it is a sedimentary rock).


The girls' rock collection, gathered from Dreamy Draw.
Pictured are: Greenstone, Gray Phyllite, Coal, Quartz,
Ferruginous Quartz, Schist, and Meta-Mudstone


It was fascinating to read about Arizona's oceanic history. I was incredibly excited to be able to look for the evidence of it and know what we were looking at. I couldn't wait to take the girls on an adventure as we went back in time through Arizona's history! I printed them off some checklists of what to look for and grabbed some small hammers and safety goggles for rock collecting. Then we were off!


I printed out an evolutionary timeline to give a scale of how much time we're talking about.
I also printed out sample pictures of the rocks we would be looking for.


The girls were thrilled to go on a geology adventure! As we drove there, I explained the story of Arizona's transformation. The drama of pushing, pulling, exploding, collapsing, and washing over was exciting for the kids and they were really looking forward to seeing the remains of that epic saga. As soon as I brought the car to a stop in the parking lot, they jumped out and began looking for a place to "go mining". They ran up to a huge chunk of schist and immediately began speculating as to how it was formed.



"Look! It's Mudstone! Wait, it's Schist!"


They saw a white dust covering large areas of rock and tried to picture the volcano that may have deposited it. They collected samples of found coal and wondered about the plants that may have contributed to its formation. I didn't yet have the answers to all of their questions but I was more than happy to encourage them as they excitedly ran about calling out to each other to check out each new find.


Where did all of this white dust come from? Volcanoes? Erosion? BBQ's?


Finally, it was time to take our checklist to the trail! Kat and Amelie giggled as they called out each specimen of Greenstone they had found. This happened quite frequently, as Greenstone can be found all over the place at Dreamy Draw! As soon as they saw the sparkling crystals of Quartz however, it immediately replaced the Greenstone as they highly sought after favorite. They found Gray Phyllite samples, the reflective mirrors of Mica, and the sparkling, rough textures of Orthoquartzite and various types of sandstone. Periodically, they would stop along the trail and check their samples against the checklist to make sure they could get a positive ID.


Checking their samples against their checklists


Their absolute favorite rock was the Ferruginous Quartz. We talked about how the iron deposited in the quartz reacted with Oxygen to make the Iron Oxide that causes the reddish color running through the crystals. We saw tiny flecks of quartz in the rough sandstone and talked about how the layers would have been added by sedimentation and then compressed over time to form the sandstone we see today. One of the greatest things I heard that day was my niece say, "I love how all of the rocks here tell a story! You can see how the Earth was made and what it used to be like here!"

 
Kat and Amelie, reading Arizona's history in the rocks.

One of my most pleasurable experiences was found by giving the kids those tiny hammers and letting them explore the rocks on their own. This brought to light yet another characteristic in identifying rocks and minerals. We had talked some time ago about breaking points and scratch tests to test the hardiness of rocks. Sandstone would be more easily scratched compared to something like quartz. The girls rediscovered this on their own though, as they realized which rocks would break easily, which could be used to mark on the sidewalk, and which could be marked on using the claws of the hammer. This became yet another situation where I could just smile and watch the thrills of their own discoveries while changing the faces of the rocks they were using.


The girls loved mining with their hammers, this is definitely something we'll do again.


The best part of all for them, however, was something they added on to our lesson themselves! As they were hiking and looking for rocks, they decided to rest near a large quartz vein. Dazzled by the brilliance of the white crystals, they decided to start a trail side collection. They grabbed tiny pieces by the handful and worked together to carefully move the heavier pieces. Before long, they had amassed quite a collection!

They built a large mouse sculpture out of the rocks, and left it on the side of the trail to greet passing hikers. Many who passed by were delighted by the sight of these two girls excitedly talking about quartz while building their sculpture. Kat and Amelie came here to learn about the story of the Earth and its many transformations. They ended up leaving behind a piece of their own story for others to find and be delighted by!


This mouse has been left as a hello from the girls to Dreamy Draw's hikers!


This lesson in geology was one of my favorite lessons of the year so far! During my research, I was able to contact the Phoenix Parks and Recreation Department, where I was pointed in the direction of the North Mountain Visitor's Center. I also contacted the Arizona Geological Survey, who provided me with a fantastic resource of maps pertaining to Arizona's geology. Kat and I will definitely be utilizing these resources to not only learn more about the history of Arizona, but to also learn more about our desert parks and the rangers who attend to them.

In the coming months, Kat and I will be visiting the Phoenix mountains of North Mountain, South Mountain, and Papago Park. Considering the beautiful geology Arizona has to offer, we'll also take our lessons to Sedona, Tucson, and we'll eventually culminate our adventures with a trip to The Grand Canyon! I am excited to see where our curiosity takes us, as well as the kinds of stories we'll get to read in the rocks when we get there.

For now though, it was wonderful to be able to include my niece in our studies. Not only did we all learn a lot about our local parks, but we had a lot of fun along the way. She is just as much of an enthusiastic learner as the rest of us, and I hope I get more chances to include her in our wonderful learning adventures!


These two girls can conquer mountains and take on the world!