8th Grade Unit 2 Review

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances with different properties, such as rusting or burning.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is rusting an example of?

Back

Rusting is an example of a chemical change because it involves the reaction of iron with oxygen to form iron oxide.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is matter?

Back

Matter is anything that has mass and occupies space.

Front

What are indicators of a chemical reaction?

Back

Indicators of a chemical reaction include color change, temperature change, gas production, and the formation of a precipitate.

Tags

NGSS.MS-PS1-2

Front

What is NOT an indicator of a chemical reaction?

Back

A phase change is NOT an indicator of a chemical reaction.

Tags

NGSS.MS-PS1-2

Front

What happens during a chemical reaction?

Back

During a chemical reaction, a new substance with different properties is formed.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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.

Tags

NGSS.MS-PS3-4

Front

Can a chemical change be reversed?

Back

Most chemical changes cannot be reversed, but some can be reversed through another chemical reaction.

Front

What is an example of a physical change?

Back

An example of a physical change is melting ice into water.

Tags

NGSS.MS-PS1-4

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form or appearance of a substance without changing its composition, while a chemical change results in the formation of new substances.

Tags

NGSS.MS-PS1-4