Physical & Chemical Properties

What is a physical property?

• A property that describes how something changes over time

• An observable property that describes the state of a system

• A property that describes how reactive something is

What is a physical property of these strawberries?

• Red

• Rotten

• Flammable

What is a chemical property?

• A property that describes the state of a system

• A property observed during a reaction

Tags

NGSS.MS-PS1-2

What is a chemical property of paper?

• Flammable

• White

• Light

Tags

NGSS.MS-PS1-2

What is a physical change?

• A change that does not affect the chemical properties of a substance

• A change that affects the chemical properties of a substance

Tags

NGSS.MS-PS1-4

What is a chemical change?

• A change that alters the physical and chemical properties of a substance

• A change of state (melting, freezing, etc.)

Is an ice cream cone melting a physical or chemical change?

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

Is toasting bread a physical or chemical change?

• Physical

• Chemical

Is grass growing a physical or chemical change?

• Physical

• Chemical

Is crumpling a piece of paper a physical or chemical change?

• Physical

• Chemical