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Science

8th Grade

NGSS covered

Used 36+ times

Cycles of Matter
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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Humans burn fossil fuels and wood, releasing carbon dioxide into the atmosphere. This carbon dioxide is then absorbed by trees for photosynthesis. These processes are contributory to which chemical cycle?

The carbon cycle

The water cycle

The nitrogen cycle

The phosphorous cycle

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the human body return carbon to the atmosphere in the carbon cycle?

Waste products

Photosynthesis

Cellular respiration

Formation of glucose

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a forest fire occurs, what will happen to the carbon in the forest?

It will go into the soil

It will go into the atmosphere

It will runoff into nearby streams and rivers

It will be destroyed

Tags

NGSS.MS-LS2-3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What kind of organism takes out the most carbon from the atmosphere?

Plants

Bacteria

Animals

Humans

Tags

NGSS.MS-LS1-6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the main reservoir of nitrogen?

Water bodies

Plants

Atmosphere

Soil

Tags

NGSS.MS-LS2-3

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

fixation is the process of

conversion of N2 to forms that can be used to synthesize inorganic nitrogen compounds

conversion of Co2 to forms that can be used to synthesize organic carbonic compounds

conversion of N2 to forms that can be used to synthesize organic nitrogen compounds

conversion of H2O to forms that can be used to synthesize organic aqueous compounds

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

why do animals and plants need nitrogen?

it helps to synthesize proteins

it helps to synthesize lipids

it helps to synthesize water

it helps to synthesize glucose

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