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5th science 2/2
Cycles of Matter
| Question | Answer |
|---|---|
| water cycle | the continuous process that water moves from earth's surface to the atmosphere and back |
| evaporation | the process by which moleules of liquid water absorb energy and change into a gas |
| condensation | the process by which a gas changes into a liquid |
| precipitation | heavy drops of water from condensed water vapor in the clouds, that fall as rain, snow, sleet, or hail |
| nitrogen fixation | the process of changing free nitrogen into a usable form of nitrogen |
| What processes are involved in the water cycle? | evaporation, condensation, precipitation, surface runoff |
| How are carbon and oxygen recycled in ecosystems? | animals breathe in oxygen and release carbon dioxide, plants take in carbon dioxide and release oxygen |
| What is the nitrogen cycle? | Nitrogen moves from the air to the soil, into living things, and back into the air. |
| What process causes water from the surface of the ocean to enter the atmosphere as water vapor? | evaporation |
| What role do producers play in the carbon and oxygen cycles? | Producers take in carbon dioxide gas from the air during photsynthesis. Producers release oxygen as a result of photosynthesis. |
| Where do some nitrogen fixing bacteria live? | In bumps called nodules on roots of certian plants. |
Created by:
ljudd
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