Physical & Chemical Change (Reassess)

An unexpected change in color is a

• chemical change.

• physical change.

Tags

NGSS.MS-PS1-2

A change of heat energy is a

• chemical change.

• physical change.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Painting a fence is an example of a

• chemical change.

• physical change.

When a new gas is formed (fizzing/bubbles/fumes) that is an example of a

• chemical change.

• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Production of light energy is a

• chemical change.

• physical change.

Melting is an example of a

• chemical change.

• physical change.

Tags

NGSS.MS-PS1-4

Production of sound energy is a

• chemical change.

• physical change.

Tags

NGSS.MS-PS4-1

Which of the following always occurs in every chemical change?

• a new substance is formed

• the substance changes size

• heat is released

• the substance changes color

Tags

NGSS.MS-PS1-2

How do chemical reactions form new substances?

• the molecules break apart and new bonds form between the atoms

• the molecules mix together release energy and create new elements

• the elements explode and separate into individual atoms

• the compounds mix in water to form solutions

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Does this show a chemical change?

• No, because it is not a different substance.

• Yes, because it is a different substance.

• Yes, because it is a different state of matter.

• No, because its atoms are rearranged.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4