Science Concepts

Front

Phases of matter

Back

Water can exist as solid (ice), liquid (liquid water), and gas (water vapor).

Front

Inflate/Deflate

Back

When gas is produced, a balloon will inflate.

Front

Matter

Back

Matter takes up space and has mass. Emotions are not matter.

Front

Physical Change

Back

A physical change does not create a different substance; only the appearance changes (e.g., cutting paper).

Front

Chemical Change

Back

A chemical change forms a new substance with different properties, such as color change or gas formation.

Front

Law of Conservation of Mass

Back

The mass before and after a physical or chemical change remains the same.

Front

Acids

Back

Acids have a pH of 0-6 and turn blue litmus paper red (e.g., lemon juice).

Front

Bases

Back

Bases have a pH of 8-14 and turn red litmus paper blue (e.g., ammonia).

Front

Neutral pH

Back

Neutral substances have a pH of 7.

Front

Identifying Mystery Powders

Back

Color is not a reliable property to identify powders.