Lesson #3: The Carbon Cycle

Plants and animals are the only reservoirs in the carbon cycle.

• true

• false

Tags

NGSS.MS-LS1-6

Photosynthesis is a process performed by plants, which converts carbon dioxide

into _____________

which the plant can use for structure.

• carbohydrates

• proteins

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Air is a reservoir for carbon. It holds the carbon-containing molecule __________.

• chloroplasts

• carbohydrates

• repiration

Photosynthesis, decomposition, and combustion are all processes that occur in the carbon cycle.

• true

• false

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Decomposition occurs when small molecules come together to make larger

molecules.

• true

• false

One of the ways in which animals can return carbon back to the atmosphere is through a process called (respiration / combustion), or what we humans refer to as breathing.

• respiration

• combustion

Tags

NGSS.MS-LS2-3

Which of the following might cause erosion?

• glaciers

• water

• wind

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

In photosynthesis, carbon is converted from carbon dioxide into

• sugar

• water

• sunlight

Tags

NGSS.MS-LS1-6

Nitrogen fixation is performed

• mostly by bacteria

• only by plants

• only by animals

Oceans are considered the largest _________ in the water cycle.

• reserviors

• sugar

• water

• rivers

Tags

NGSS.MS-ESS2-4