Print Kitchen Chemistry Reading Comprehension
||edHelper's suggested reading level:
||grades 7 to 8
||Flesch-Kincaid grade level:
||inquiry, Unpopped, originally, vinegar, original, boiling, testing, investigate, base, produce, nearly, material, separate, involve, carbon, dioxide
By Sharon Fabian
1 Inquiry is a wonderful word in science. It means investigating and learning about things on your own. If you want to do some inquiry into the science topic of matter, a really good place to start is in the kitchen. Kitchen chemistry is a great way to learn about chemical changes and the three phases of matter.
2 There are lots and lots of things you could investigate in the kitchen, since cooking usually involves some chemical processes. Let's just look at these few: baking a cake, red cabbage, hot fudge sundaes, popcorn, and oobleck.
3 Cooking food often causes a chemical change. When a chemical change happens, the food cannot be changed back into what it originally was. So, making a salad is not a chemical change. You can take a salad apart again. Baking a cake is a chemical change, because you can't separate cake into its original ingredients. Baking a cake is a chemical change that uses water, baking soda, and other ingredients that produce acid. Baking these ingredients releases carbon dioxide gas, which makes the cake rise.
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