Chemical and Physical Reactions

Select TWO options that are examples a physical change.

• A pencil

• Wood burning

• Cutting grass

• biting a sandwich

Select TWO options that are examples a chemical change.

• Baking dough

• Cutting bread

• Frying fries

• Opening fries

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

A copper penny turning greenish after a few years is an example of what kind of change.

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2

Flammability is an example of a physical property.

• True

• False

Is a copper penny turning greenish after a few years a chemical or physical change?

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2

Physical properties are

• properties that can be observed without changing the identity of the substance

• properties that describe how a substance changes into a completely different substance

• properties that we can only observe with our eyes

• properties that we need special tools to observe

Tags

NGSS.5-PS1-3

Is water and sodium being separated a chemical or physical change?

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

A ________ change, like tearing paper, result(s) in no new substances. What kind of reaction is this?

• A physical change

• A chemical change

• Physical and chemical changes

• None of the above

Tags

NGSS.MS-PS1-2

The ability to burn is known as---

• Flammability

• Combustion

• Density

• Exploding

Tags

NGSS.MS-PS1-2

Which is an example of a physical change?

• Burning wood
• Freezing water
• Rust on a car
• Cooking food