Carbon/Oxygen Cycle

Animals and plants use substances that cycle through the environment.  Which substance is needed by plants to survive and is released into the environment by animals?

• oxygen
• sugar
• salt
• carbon dioxide

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

The carbon dioxide/oxygen cycle is important to animals because it provides

• oxygen they take in when breathing

• chemicals that build bones
• carbon dioxide that animals need for respiration

• fresh water for their survival

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NGSS.MS-LS2-3

Plants use _____________ to make their own food during photosynthesis.

• water
• energy from the Sun
• CO2
• water, energy from Sun, CO2

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Organisms that do not decompose can be buried and become what?

• water
• nutrients
• air
• fossil fuels

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All of the carbon that exists on Earth is continually recycled in the carbon cycle

• True

• False

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NGSS.MS-ESS2-1

NGSS.MS-LS2-3

In what process is Carbon transformed into chemical energy?

• Photosynthesis
• Respiration
• Primary Production
• Secondary Production

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NGSS.MS-LS1-6

NGSS.MS-LS1-7

The diagram shows the flow of organic molecules through an ecosystem. What two processes are identified by the labels X and Y?

• X : Respiration
  Y : Predation
• X : Adaptation
  Y : Decomposition
• X : Fermentation
  Y : Nitrogen Fixation
• X : Decomposition
  Y : Respiration

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NGSS.MS-LS2-3

How do animals get carbon?

• By eating plants and or other animals.

• They absorb it from the atmosphere.

• From the ground

• They do not get carbon from anywhere.

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NGSS.MS-LS1-7

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Which of the following are fossil fuels?

• Coal, water, oil

• Oxygen, coal, oil

• Coal, Oil, Natural Gas

• None of the above

How does the carbon in grass become part of a lion?

• The lion eats the grass
• Carbon from grass doesn't end up in a lion. 
• The carbon ends up in the lion's food chain. 
• The lion breathes in carbon given out by the plant

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NGSS.MS-LS1-6

NGSS.MS-LS2-3