Water Cycle
Carbon cycle
Nitrogen Cycle
100

What do you call it when the water is falling out of the clouds?

What is precipitation

100

What is it when plants take carbon from the atmosphere.

What is photosynthesis 

100

What is the process that converts atmospheric nitrogen into usable compounds. 

What is nitrogen fixation.

200

What is it called when melted snow comes off of the mountains into another body of water?

What is snow runoff

200

Things we burn that are really old and release a lot of carbon into the atmosphere.

What are fossil fuels.

200

What makes up about 80% of the earths atmosphere?

What is nitrogen.

300

What is it called when the water heats up and turns into a gas?

What is evaporation

300

What is it called when organisms break down the carbon compounds and release carbon int the atmosphere.

What is decomposition. 

300

What is the process called when nitrate is converted back into nitrogen gas and returned to the atmosphere

What is denitrification. 

400

What is it called when the gasses form into clouds?

What is condensation

400

Where is most of the carbon in the world stored?

What is the ocean.

400

What types of nitrogen do plants absorb from the soil.

What is ammonia,ammonium,nitrate or nitrite

500

Where does the most evaporation happen on earth?

What is the ocean

500

What are fossil fuels formed from?

What is dead organic matter.

500

What do animals get nitrogen from?

What is plants.

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