Physical and Chemical Changes

What is a physical change?

• A change that creates a new substance

• A change in the way a substance looks or feels

• A change that only happens in a laboratory

• A change that can't be reversed

Tags

NGSS.MS-PS1-4

Which of the following is an example of a physical change?

• Baking a cake

• Melting ice

• Rust forming on a bicycle

• Mixing vinegar and baking soda

What is a chemical change?

• A change in the state of matter

• A change that can be easily undone

• A change that creates a new substance

• A change that only affects solids

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is an example of a chemical change?

• Cutting a piece of paper

• Boiling water

• Burning wood

• Freezing lemonade

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When you crumple a piece of paper, it's a __________ change.

• Physical

• Chemical

What happens during a chemical change?

• The substance changes color

• A new substance is formed

• The substance changes shape

• The substance becomes colder

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When iron rusts, it's an example of a ____________ change.

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a sign of a chemical change?

• Ice melting into water

• A foul smell coming from a mixture

• A change in the substance's state of matter

• Water evaporating into steam

Tags

NGSS.MS-PS1-2

What happens during a physical change?

• A new substance is created

• The substance's molecules are rearranged

• The original substance is unchanged

• A chemical reaction occurs

If you mix two liquids, and they create bubbles and fizz, it's most likely a ___________ change.

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5