U3-L1: Chemical Reactions

What are physical properties of a substance?

• Properties that can be observed or measured without changing the substance's identity.

• Properties that change the substance into a new material.

• Properties that are only visible under a microscope.

• Properties that are only theoretical and cannot be measured.

Tags

NGSS.MS-PS1-2

Which of the following is NOT a physical property?

• Density

• Color

• Reactivity

• Boiling point

Why is it important to determine multiple properties of a substance?

• To make the substance more colorful.

• To correctly identify the substance.

• To change the substance's identity.

• To make the substance heavier.

Tags

NGSS.MS-PS1-2

What is a chemical property?

• A characteristic that can be observed without changing the substance

• A property that determines how a substance changes into another substance

• A measure of the amount of matter in an object

• A property that describes the color of a substance

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

• Color

• Mass

• Flammability

• Volume

How are particles in the original substance arranged when forming a new substance?

• They remain unchanged

• They are arranged in the same way

• They are arranged in different ways

• They disappear

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens to water when it freezes?

• It turns into a different substance.

• It remains water.

• It becomes wood.

• It disappears.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What happens to wood when it burns?

• It remains wood.

• It turns into water.

• It is no longer wood.

• It becomes ice.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

What is a key difference between freezing water and burning wood?

• Both remain the same substance.

• Freezing water changes its substance, burning wood does not.

• Freezing water remains the same substance, burning wood does not.

• Both change into different substances.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

What can physical changes alter in a substance?

• The shape or appearance

• The particles

• The chemical composition

• The temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4