We read about the composition of the earth and its surrounding atmosphere, watched a couple of clips on our Science DVD about experiments we could do with air, and re-created the experiments at home. Taylor and Rory got a big kick out of racing sheets of paper across the floor by waving cardboard panels and then sticking an "empty" plastic teapot in a large bowl of water and discovering that the as the water filled the teapot lots of bubbles of air were escaping. Nothing is every really empty - it's filled with air!
But by far the most fun part of today was when we were checking out the links that go along with our Usborne Internet-Linked Children's Encyclopedia and came across a site that explains how to make an edible model of the Earth. The girls begged me to let them make this today. And because I really want to feed their excitement for learning, and we happened to have a rough collection of ingredients to pull it off (!), we popped a pizza lunch in the oven and got to work on Earth models for dessert!
First we needed to find a core for our Earth. The recipe called for a spice drop, but we didn't have any of those so we dug through our very large tub of candy (leftover from Halloween and all sorts of other occasions where people gave our kids treats) and found a small package of gummy lifesavers. Earth's Inner Core - check!
Then we needed large marshmallows for the Outer Core. 2 left in the pantry - check!
The mantle of the Earth was to be made of Rice Krispie Treats. As I pulled our box of TJ's Crisped Rice Cereal off the shelf, I could feel that the box was very light. My heart began to sink a little, thinking I'd have to break the news to the girls that the Earth model was off. The cereal was near the bottom of the bag, but after pouring it out in a measuring cup I saw that we had enough to make 1-1/2 recipes. Phew! Close call! I was shooting to have one Earth for each girl, so this would work just fine.
Mark had recently stocked up on sugar-coated, multi-colored marshmallows (at Rory's request when he took the kids grocery shopping) so we used three of those for every large marshmallow mentioned in the recipe to make the cereal treats.
The recipe then calls for a bottle of chocolate shell syrup to make the crust, but we definitely didn't have that on hand. We had regular chocolate chips we could melt, but I convinced Taylor that we needed to save those to make more cookie dough another day for Mark's famous Chocolate Mountain Mudslides (if you haven't tasted one yet, you haven't truly lived ;) ). So instead we found a bag of white chocolate chips and melted those down in a double-boiler for our Earth's crust. It ended up being a great idea to use the white chocolate chips because then I added some blue food coloring and voila, OCEAN!
Elliott came out of the kitchen to our construction zone with a box of our super-special Dutch chocolate sprinkles (straight from Amsterdam in my parent's suitcase) and - light bulb! - we realized we could use those too to create some of the land surface of the Earth.
By the time we finished out Earth models, our pizza was done cooking! We scarfed down lunch quickly and then eagerly returned to our models for the final reveal - cutting a cross-section of our Earth to see every layer we had labored to create.
"Ahhhhhhh!" sang the angels from above as we saw...
Inner core, outer core, mantle, and crust!!
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Now, there was only one thing left to do.
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Yum! This is a rich and tasty, not to mention LARGE, treat! We'll be nibbling through our Earths for the rest of the day for sure.
Science is sweeeeeeeeet.









































