Chemical/Physical Changes

Front

What are the substances that undergo change during a chemical reaction called?

Back

Reactants

Tags

NGSS.MS-PS1-2

Front

What type of change occurs when a new substance is formed?

Back

Chemical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is an example of a physical change?

Back

Melting ice or boiling water.

Tags

NGSS.MS-PS1-4

Front

What is an example of a chemical change?

Back

Rust forming on a bike.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What happens when baking soda and vinegar are mixed?

Back

A chemical change occurs, producing carbon dioxide gas.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

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

Back

A chemical change results in the formation of new substances, while a physical change does not.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

Front

What is a sign that a chemical change has occurred?

Back

Production of gas, color change, temperature change, or formation of a precipitate.

Tags

NGSS.MS-PS1-2

Front

What is a precipitate?

Back

A solid that forms and settles out of a liquid mixture during a chemical reaction.

Tags

NGSS.MS-PS1-2

Front

Is the mixing of two clear liquids that produces a white powder a chemical change?

Back

Yes, it indicates a chemical change has occurred.

Tags

NGSS.MS-PS1-2

Front

What does it mean if a reaction is exothermic?

Back

It releases heat to the surroundings.

Tags

NGSS.MS-PS3-3