Water
Nitrogen
Carbon
Food Web
Food Chain
100
What are the five cycles of water?
Evaporation, transpiration, respiration, condensation, and precipitation.
100
How much of the air we breathe is Nitrogen?
What is four-fifths
100
What are the three cycles in Carbon?
What is photosynthesis, respiration, combustion.
100
Grass
What is a producer?
200
Oxygen and hydrogen
What are the two elements that make up water?
200
Lightning
What breaks apart or fixes pure nitrogen, chaniging its form that plants can use?
200
Plants use carbon dioxide to produce sugar. What is this process called?
Photosynthesis
200
A model of the feeding relationships between many different producers and consumers in an ecosystem.
What is a food web?
200
Made of links that are connected one by one.
What is a chain?
300
Where does nitrogen-fixing bacteria live?
In the oceans and the soil.
300
Is there more carbon in the oceans or in the air?
Oceans
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