Matter Cycling

Is glucose (C₆H₁₂O₆) a reactant (raw material) or product of photosynthesis?

• Product

• Reactant

• Neither

Tags

NGSS.MS-LS1-6

What causes the water and carbon dioxide molecules to break apart inside plants?

• electricity

• light

• oxygen

• glucose

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

During the Carbon Cycle...

• carbon is stored in the soil.

• carbon is stored in plants.

• carbon is stored in the atmosphere.

• all of the above.

Tags

NGSS.MS-LS2-3

Which of the following is NOT true about systems that cycle matter?

• Living things play a role in the cycling of matter.

• Matter is not created as it cycles through the environment.

• Some matter is destroyed as it cycles through the environment.

• Matter is constantly cycling through the environment.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Students designed an experiment to model the carbon cycle. The students combined water & carbon dioxide-producing disks in a sealed flask. The flask represented earth's atmosphere, and the lamp represented the sun.

Which component can be added to the flask to reduce the concentration of carbon dioxide in the model atmosphere created by the discs?

• Bacteria to use carbon during nitrification.

• Plants to absorb carbon in the process of photosynthesis.

• Snails to use carbon through cellular respiration.

• Mushrooms to absorb carbon during decomposition.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

_______________________ converts nitrogen into a form that plants can absorb.

• Denitrifying bacteria

• Nitrogen fixing bacteria

• Decomposers

Tags

NGSS.MS-LS2-3

How do animals obtain nitrogen stored in plants?

• Denitrifying bacteria

• Nitrogen fixing bacteria

• Directly from the atmosphere

• They eat the plants

Tags

NGSS.MS-LS2-3

Label the diagram of the carbon cycle

f

g

h

e

d

c

b

a

CO₂ dissolved in water

Atmospheric carbon dioxide

decomposition

combustion

cellular respiration

fossilization (fossil fuels)

photosynthesis

feeding

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The Law of Conservation of Mass (Matter)

• Do not use too much mass.

• Matter con not be created or destroyed.

• Energy flows through an ecosystem.

• Matter moves through an ecosystem.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

This image shows the _________ cycle.

• Carbon

• Oxygen

• Nitrogen

• Water