Unit 4- Changes in Matter 8th Grade Review-2024

Front

What does the Law of Conservation of Mass state during a chemical change?

Back

Matter is transformed, meaning it is neither created nor destroyed.

Tags

NGSS.MS-PS1-5

Front

What type of compound is sodium hydroxide?

Back

Sodium hydroxide is a base.

Front

What is a common characteristic of compounds?

Back

Compounds can be broken down into simpler substances.

Front

What conclusion can be drawn from Marsha's observation of ants and sweet liquids?

Back

Marsha’s observations support her hypothesis that ants are attracted to sweet liquids.

Tags

NGSS.MS-LS2-4

Front

Which process best demonstrates a chemical change?

Back

Baking cookies is a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Define 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 is a chemical change?

Back

A chemical change is a process that involves the transformation of one or more substances into different substances.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the pH scale used for?

Back

The pH scale measures the acidity or basicity of a solution.

Front

What happens to the properties of a substance during a chemical change?

Back

The properties of the original substance change to form new substances.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Tags

NGSS.MS-PS1-4