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Physical Science

Authored by Charles Martinez

Science

9th Grade

NGSS covered

Physical Science
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is missing from the product side of this photosynthesis reaction?

2 water molecules

12 oxygen atoms

12 hydrogen atoms

6 carbon atoms

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When you react nitrogen and hydrogen to synthesize ammonia heat is released. How does the reaction affect the mass of the reacting chemicals?

Mass decreases because some is converted into heat energy

Mass stays the same because no matter is created or destroyed

Mass increases because a more complex compound is produced.

Mass stays the same because molecular mass cannot change form.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of the equations is written correctly?

A

B

C

D

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

How many molecules of oxygen gas are needed to balance this equation?

1

2

3

4

Tags

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dry ice sublimates from a solid to a gas. What happens to the carbon dioxide during the process?

It absorbs heat energy from the air.

It releases heat energy into the air.

It reacts with oxygen and becomes a gas.

It loses mass to become a gas.

Tags

NGSS.MS-PS1-4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Why did the balloon expand?

All of the water evaporated to make a gas

The gas in the bottle expanded because it got warmer.

Some of the gas condensed to liquid water

The liquid water expanded into the balloon as it became warmer.

Tags

NGSS.MS-PS1-4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which statement because describes what is occurring between Time 1 and Time 2?

gas to solid

gas to liquid

solid to liquid

liquid to solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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