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science
lesson 1
| Question | Answer |
|---|---|
| all organisms need what of the environment in order to survive? | non-living parts |
| what does M.A.W.S. stand for? | minerals, air, water, sun |
| what are the non-living essentails of life? | minerals, air, water, and sun |
| minerals are found in where? | soil |
| air contains what? | oxygen |
| is water necessary to sustain life? | yes |
| what continually leaves our body? | minerals, air, water, and the sun |
| once minerals enter the body they undergo what? | chemical reactions |
| the human body is made up of how much percent oxygen? | 65% |
| the human body is made up of how much carbon? | 18% |
| the human body is made up of how much hydrogen? | 10% |
| the human body is made up of how much nitrogen? | 3% |
| the human body is made up of how much mineral elements? | 4% |
| condensation then precipitation then what? | evaperation |
| oxygen then what? | carbon dioxide |
| minerals in undigested food are removed in the what? | feces |