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Sci8/CyclesinNature

First 9 Weeks Review

TermDefinition
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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