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The Excretory System |
| edHelper's suggested reading level: | grades 5 to 8 | |
| Flesch-Kincaid grade level: | 5.29 |
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The Excretory System
By Brandi Waters |
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1 Inside your body are many harmful chemicals. Many of them are made inside your body. Your body is made of living cells. The cells need energy to live. They get energy from the foods that you eat. Sugars, fats, and proteins can all be turned into energy for the cells to use. The cell breaks them down into small pieces, but not every piece can be used. The process of making energy also makes other chemicals that your body cannot use. The chemicals that are left over from or created during this process can be harmful if there are too many of them in your body. Your body gets rid of these harmful chemicals through the excretory system.