Nitrogen Cycle Worksheet

First step in the process of making nitrogen useable by plants.

This is the process by which ammonium gets changed into nitrates by bacteria.

This is how plants get nitrogen.

This is part of the decaying process.

Extra nitrogen in the soil gets put back out into the air.

It fixes nitrogen for it to be used by plants.

Nitrogen being fixed, used by plants, and later returned to the atmosphere.

They turn the nitrogen back in ammonium.

After bacteria changes Nitrogen turns into ammonium (fixation), the bacteria changes into nitrates (nitrifiction).

The plants take up a lot of nitrogen from the soil.

Nitrogen has to be changed.

eating plants or other animals that contain nitrogen. When organisms die, their bodies decompose bringing the nitrogen into the soil on land or into the ocean water. Bacteria alter the nitrogen into a form that plants are able to use.

It reduces nitrogen gas than takes it out in the atmosphere.

Perform the essential process of the nitrogen cycle such as ammonification, nitrogen fixation, and nitrification.

Bacteria needs to convert into ammonia. The energy from the lightning and water combined can help it.

Too much nitrogen can pollute the water if entered in an aquatic system.

It converts nitrogen into ammoniumia.

Compounds are carried to the earth by asteroids.

The flow of nutrients is not in an ecosystem, the nutrients does not flow in one direction.

The purpose is to tell you that the soil is moist or wet.

Plants and animals die their nitrogen is returned to the soil as ammonia by bacteria through the process of decay.

Cells inside the plants.

Nitrates Denitrates Fixes