Matter and its Interactions

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What happens to the weight of a substance when it changes state?

Back

The weight stays the same even if the substance changes state.

Tags

NGSS.MS-PS1-4

Front

What is a chemical property of matter?

Back

A chemical property of matter is a characteristic that can only be observed during a chemical reaction, such as flammability.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; it remains constant.

Tags

NGSS.MS-PS1-5

Front

What is condensation?

Back

Condensation is the process by which water vapor in the air cools and changes into liquid water.

Tags

NGSS.MS-ESS2-4

Front

What is an example of a physical change?

Back

Breaking a glass jar is an example of a physical change.

Front

What is an example of a chemical change?

Back

Burning wood is an example of a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

How can you determine if a change is physical or chemical?

Back

If the substance's chemical composition changes, it is a chemical change; if it retains its composition, it is a physical change.

Tags

NGSS.MS-PS1-2

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Tags

NGSS.MS-PS2-4

Front

What is flammability?

Back

Flammability is a chemical property that describes how easily a substance can ignite and burn.