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Sci8/CyclesinNature
First 9 Weeks Review
| Term | Definition |
|---|---|
| Water Cycle | model to describe how water moves from the Earth's surface to atmosphere and back to the surface again through evaporation, condensation, and precipitation. |
| Evaporation | water changes from a liquid to a gas |
| Condensation | gas changes back to a liquid |
| Precipitation | droplets that fall from from the clouds to ground as rain, snow, and sleet, etc. |
| Nitrogen Cycle | Model describing how Nitrogen moves from the atmosphere to the soil, to living organism, then back to the atmosphere. The nitrogen cannot be used in the free form as a gas. |
| plants | Bacteria in the soil is fixed so that some _______ can use the Nitrogen. Animals eat the _________ and get Nitrogen. |
| soil | Waste from animals returns Nitrogen to the ________. When animals and plants die decomposers return the Nitrogen to the ______ for plants. |
| Nitrogen | _____________ is changed into usable compounds from lighting. Plants and animals use _________ to build cells. Human DNA contains _________. |
| Carbon Cycle | Model describing how Carbon molecules move between the living and nonliving world. |
| photosynthesis | The carbon cycle begins when (plants) remove Carbon Dioxide during photosynthesis and give off oxygen as a product. |
| respiration | During ____________ animals take in Oxygen and give off Carbon Dioxide. |
Created by:
mgrant
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