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Eco 2.2 Review

Cycles of Matter

QuestionAnswer
The cycling of water from Earth's surface into the atmosphere and back. Water Cycle
The cycling of carbon and oxygen through an ecosystem by producers and consumers. Oxygen/Carbon dioxide Cycle
The cycling of free nitrogen into fixed nitrogen and back to free nitrogen. Nitrogen Cycle
Water that falls back to earth; ex: rain, hail, snow precipitation
When liquid water is turned into water vapor evaporation
Water vapor cools into tiny liquid water droplets, forming clouds. condensation
Take in carbon dioxide, release oxygen into the atmosphere. plants
Take in oxygen, release carbon dioxide into the atmosphere. animals
21% of atmospheric gases oxygen
78% of atmospheric gases nitrogen
0.04% of atmospheric gases carbon dioxide
Energy from this powers the water cycle Sunlight
The sun heats liquid water into this invisible gas water vapor
Bacteria on nodules on plant roots "fix" nitrogen to other elements to form compounds that are usable by living things. nitrogen fixing bacteria
Bacteria that separate nitrogen from compounds and it returns to the atmosphere as "free" nitrogen. nitrogen freeing bacteria
Created by: bphelan
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