The Oxygen Cycle
The Carbon Cycle
The Nitrogen Cycle
Guess That Cycle
Vocab
100

What is oxygen produced by?

What is photosynthesis?

100

The formation of fossil fuels is driven by what energy?

What is solar energy?

100

How do organisms get nitrogen into their bodies?

What is by eating plants containing nitrates?

100

Which cycle is shown in this picture?

What is the oxygen cycle?

100

What is a location in which atoms of an element are held for a long period of time?

What is a reservoir? 

200

How can the oxygen in organic material become part of rocks?

What is sedimentation?

200

Which of the following does not contain carbon in some form? Diamonds, Water molecules, graphite, or coal?

What are water molecules?

200

When living things die what happens to the ammonia in their bodies?

What is it returns to the ground?

200


What is the carbon cycle?

200

What are the four reservoirs that contain all of the three topic elements?

What is the biosphere, atmosphere, hydrosphere, and lithosphere?

300

How is oxygen released from sediment?

What is weathering?

300

Three types of carbon that exist in the Earth reservoir.

What is coal, fossil fuels, and limestone?

300

What is the process in which bacteria in soil change the nitrogen gas into ammonia?

What is nitrogen fixation?

300

What two cycles go through photosynthesis as a part of their cycle?

What is the carbon and oxygen cycle?

300

Energy from the sun.

What is solar energy?

400

Photosynthesis is the driving force for what?

What is making oxygen available for life?

400

Two types of carbon that exist in the ocean reservoir.

What is carbon dioxide and carbonate ion?

400

Without nitrogen in our bodies we would not be able to form these, which are made of amino acids and carry out many of the functions that allow us humans to survive.

What are proteins?

400


What is the nitrogen cycle?

400

This converts ammonia into nitrates.

What is bacteria?

500

Being used by living organisms or being released back into the atmosphere are two ways that what kind of oxygen can be released from water?

What is dissolved oxygen?

500

The two sources of energy that fuel the carbon cycle.

What is solar energy and Earth's internal energy?

500

What is it called when nitrates and ammonia are converted back into nitrogen gas by bacteria?

What is denitrification?

500

Denitrification is part of what cycle?

What is the nitrogen cycle?

500

Nitrogen is vital to form these, which are unique in everyone and are formed of nucleotide bases.

What is DNA?