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Science

8th Grade

NGSS covered

Used 1+ times

cycles of matter
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38 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What makes up 78% of the air we breathe?

oxygen
free nitrogen
fixed nitrogen
carbon

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where is free nitrogen fixed?

in the nodules on the roots
in the stems
in the decomposers
in cow's intestines

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best explains why nitrogen fixation must take place?

Atmospheric nitrogen is unusable to plants and animals
Nitrogen must be returned to the atmosphere
Animals must breathe in nitrogen
Nitrogen gets "stuck" in the soil and must be untrapped

Tags

NGSS.MS-LS2-3

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

What is A?

Evaporation
Condensation
Precipitation
Runoff

Tags

NGSS.MS-ESS2-4

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

What is B?

Evaporation
Condensation
Precipitation
Runoff

Tags

NGSS.MS-ESS2-4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What gas is released by plants from the process of photosynthesis?

air
carbon dioxide
oxygen
hydrogen

Tags

NGSS.MS-LS1-6

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Photosynthesis

absorbs CO2
releases CO2

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

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