Physical and Chemical Change

Which of the following is a sign that a chemical reaction has occurred?

• change in shape

• formation of a gas

• melting

• dissolving

Tags

NGSS.MS-PS1-2

Is melting butter for popcorn a chemical or physical change?

• chemical change

• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

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

• crumpled paper

• pencil sharpening

• shrunken clothing

• rust

A change where one or more new substances are created.

• Physical Change

• Chemical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Change in color is a physical change.

• True

• False

Tags

NGSS.MS-PS1-2

Rust on an iron bar is an example of chemical change.

• True

• False

Tags

NGSS.MS-PS1-2

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

• Chemical change

• Physical change

Digesting your food is an example of _____________.

• chemical change

• physical change

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

Which is an example of a chemical reaction?

• paper cut into small pieces

• chocolate melting in a pan

• flour and sugar mixed in a bowl

• cookies baking in an oven

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A change in the size, shape, or state of matter.

• chemical change

• physical change

Tags

NGSS.MS-PS1-4