Biogeochemical Cycles

Front

What are biogeochemical cycles?

Back

Biogeochemical cycles are natural processes that recycle nutrients in various chemical forms from the environment to organisms and back to the environment.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

Which cycle DOESN'T cycle through the atmosphere?

Back

Phosphorus cycle.

Front

What gas makes up at least 75% of the atmosphere?

Back

Nitrogen.

Front

What is ammonification?

Back

Ammonification is the process by which decomposers convert organic matter from wastes and dead organisms into ammonium (NH₄⁺).

Tags

NGSS.MS-LS2-3

Front

Identify the cycle that involves the weathering of rocks releasing nutrients.

Back

Phosphorus cycle.

Tags

NGSS.MS-LS2-3

Front

What is the main source of phosphorus in ecosystems?

Back

The weathering of rocks.

Front

What is the role of nitrogen-fixing bacteria in the nitrogen cycle?

Back

They convert atmospheric nitrogen (N₂) into ammonia (NH₃), making it available for plants.

Tags

NGSS.MS-LS2-1

Front

What is the process of nitrification?

Back

Nitrification is the conversion of ammonia (NH₃) into nitrites (NO₂⁻) and then into nitrates (NO₃⁻) by bacteria.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Front

What is the significance of the carbon cycle?

Back

The carbon cycle is crucial for regulating Earth's climate and supporting life by cycling carbon through the atmosphere, biosphere, and geosphere.

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

How does water cycle through the environment?

Back

Water evaporates, condenses into clouds, and precipitates as rain or snow, returning to bodies of water and the ground.

Tags

NGSS.MS-ESS2-4