Physical & Chemical Changes 24-25

Front

Dissolving sugar in water is an example of a ____ change.

Back

Physical change

Front

A change in the state of matter is a __________ change.

Back

Physical change

Front

Which of the following is NOT an example of a physical change? (crumpling paper, sharpening a pencil, clothes shrinking, sour milk)

Back

Sour milk

Front

Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –

Back

Made of two different elements.

Front

Which of the following atomic symbols is written correctly? (ee, hE, C, CL)

Back

C

Front

What is a physical change?

Back

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 change that results in the formation of new chemical substances.

Front

Give an example of a physical change.

Back

Melting ice.

Front

Give an example of a chemical change.

Back

Rusting of iron.

Front

What happens to the molecules during a physical change?

Back

The molecules rearrange but do not change their chemical structure.