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Chemical Changes and Counting Atoms

Authored by Charles Martinez

Science

7th Grade

NGSS covered

Chemical Changes and Counting Atoms
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61 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A change where one or more new substances are created.

Physical Change 
Chemical Change 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following is NOT an example of a physical change?

crumpled paper
pencil sharpening
shrunken clothing
rust

Tags

NGSS.MS-PS1-2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Silverware tarnishing is an example of a _____ change

Physical

Chemical

Tags

NGSS.MS-PS1-2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

When you break a cracker into pieces it is a...

Chemical change
Physical change

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Is salt dissolving in water a physical or chemical change?

Physical
Chemical

Tags

NGSS.MS-PS1-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Is water melting a physical or chemical change?

Physical
Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Is digesting your food a physical or chemical change?

Physical
Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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