Physical Properties of Matter

Front

What do scientists use to observe and describe matter?

Back

Physical properties are characteristics that can be observed or measured without changing the substance's identity.

Front

Do physical properties of a substance change based on the amount of the substance you have?

Back

False. Physical properties do not change with the amount of the substance.

Front

What physical property was used to sort aluminium foil, penny, and iron filings from plastic spoon, glass, and toothpick?

Back

These groups were sorted based on the physical property of electrical conductivity.

Front

How do you order liquids from most dense to least dense?

Back

The order is 4, 3, 2, 1, where 4 is the most dense and 1 is the least dense.

Front

What state of matter has molecules that spread out and move fast?

Back

Gas. In gases, molecules are far apart and move quickly.

Front

What are physical properties?

Back

Physical properties are characteristics of matter that can be observed or measured without changing the substance.

Front

Name three physical properties of matter.

Back

Color, density, and melting point.

Front

What is density?

Back

Density is the mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What happens to the physical properties of a substance when it changes state?

Back

Some physical properties, like density and shape, may change, but the substance itself remains the same.

Front

What is the difference between solids, liquids, and gases in terms of molecular movement?

Back

Solids have tightly packed molecules that vibrate in place, liquids have molecules that are close but can move past each other, and gases have widely spaced molecules that move freely.