Cycling of Matter Assessment

An organism that lives by breaking apart dead organic matter into simpler parts is...

• scavenger

• consumer

• decomposer

• carnivore

Tags

NGSS.MS-LS2-3

Which of the following most accurately describes the path of a nitrogen molecule through the environment?

• It moves through the environment once--going from gas, to solid, and back to gas

• It moves through the environment repeatedly, and always in the same order

• It moves through the environment repeatedly, but not necessarily in the same order

• It moves through the environment twice, then disappears

Tags

NGSS.MS-LS2-3

How does carbon become locked inside the earth?

• Tree roots expel carbon into the soil as they grow

• Humans use machines to pump carbon dioxide into large underground tanks

• Rocks become richer in carbon as time goes on

• The carbon-rich bodies of plants and animals decay into the earth after they die

Tags

NGSS.MS-ESS2-1

The energy pyramid is a triangular shape because

• 90% of energy is lost to heat, movement, and survival, and only 10% of energy goes to the next level

• People see the top of the pyramid so it is important to know the keystone species.

• 10% of energy is lost to heat, movement, and survival, and only 90% of energy goes to the next level

• the top of the pyramid is the pinnacle organism of an ecosystem

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Oceans, the atmosphere, and groundwater are all ________ in the water cycle.

• nodes

• sinks

• reservoirs

• stations

Tags

NGSS.MS-ESS2-4

A decomposer is an important part of an ecosystem because it____.

• produces food for other organisms

• breaks down decaying organisms

• is nonliving

• relies on living animals for its food

Tags

NGSS.MS-LS2-3

Decomposers get their food by __________.

• making it themselves

• eating live organisms

• breaking down dead organisms

• eating themselves

Tags

NGSS.MS-LS2-3

Which statement is best represented by the diagram?

• All carbon is in the form of carbon dioxide.

• Carbon can exists in many forms, but the total amount of carbon stays the same.

• The amount of carbon in the cycle can increase or decrease based on the amount of factories

• Only living things release carbon dioxide into the atmosphere.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The setup in the diagram is left outside during the day and at night. Bubbles are continuously produced regardless of the presence or absence of sunlight. What can you predict about the composition of the gas in the bubbles?

• The bubbles are always oxygen (O2).

• The bubbles are always carbon dioxide (CO2).

• During the day, the bubbles are CO2 and the bubbles are O2 at night.

• During the day, the bubbles are O2 and the bubbles are CO2 at night.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following processes is primarily responsible for the cycling of carbon in the environment?

• Photosynthesis and respiration

• Evaporation and condensation

• Erosion and sedimentation

• Melting and freezing

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3