What is the definition of chemical change?

• 2 or more substances that join and form a new one

• A reaction that releases energy

• A reaction that involves a change in color

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is are examples of a chemical reaction?

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

A ​ (a)   change is when something changes ​look or ​ (b)   without creating a ​ (c)   ​ (d)  

• physical
• form
• new
• substance
• old
• temperature
• places

What are some examples of physical change?

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Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A ​ (a)   is the smallest unit of measure.​

• atom
• piece
• scrap

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NGSS.MS-PS1-1

This is an example of the atoms that make up water. It has three parts. Label each part

d

a

b

c

hydrogen right

oxygen

hydrogen left

molecule

Tags

NGSS.MS-PS1-1

Volume is

• The amount of energy something has.

• The amount of space something takes up.

• The amount of weight something has.

Mass is...

• the measure of the amount of matter in an object.

• How dense something is.

• The amount of space an object occupies.

​ (a)   makes up everything in the universe.​

• Matter
• We

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

When mixtures are formed, a chemical change takes place

• True

• False

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NGSS.5-PS1-4