Biogeochemical Cycles (Water, Carbon, Nitrogen)

Why do living things need nitrogen?

• To get energy

• To make amino acids

• To make proteins

• To make proteins AND amino acids

Identify the cycle pictured.

• The Water cycle
• The Carbon cycle
• The Nitrogen cycle
• The Phosphorus cycle

When nitrogen gas is turned in to a form that plants and animals can use is called 

• Combustion
• Photosynthesis
• Decomposition
• Nitrogen Fixation

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

How do animals get nitrogen?

• the atmosphere 
• eating other organisms
• rainwater
• lightning 

What happens when organisms die and decay? 

• Their nitrogen moves to the air as nitrogen gas
• Their nitrogen returns to the soil as ammonium
• Their nitrogen becomes tapped in clay and is unusable
• They stay on earth forever

Tags

NGSS.MS-LS2-3

A correct path that nitrogen could take would be

• air -> animals -> plants -> bacteria

• animals -> air -> bacteria -> plants

• bacteria -> air -> plants -> animals

• air -> bacteria -> plants -> animals

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is the only process that removes carbon from the atmosphere?

• combustion
• cellular respiration
• photosynthesis
• decomposition

Tags

NGSS.MS-LS1-6

Identify the cycle pictured.

• The Water cycle
• The Carbon cycle
• The Nitrogen cycle
• The Phosphorus cycle

Tags

NGSS.MS-LS1-6

Water in oceans, lakes, rivers, and other reservoirs changes from a liquid to a gas through _____________.

• Evaporation

• Transpiration

• Condensation

• Precipitation

Tags

NGSS.MS-ESS2-4

Water also comes from plant leaves to the atmosphere through ________________.

• Evaporation

• Transpiration

• Condensation

• Precipitation

Tags

NGSS.MS-ESS2-4