Unit 2 Interactions of Matter

Front

What are the characteristics of gas particles?

Back

Gas particles are spread far apart, compressible, and move around freely at high speeds.

Front

What type of change occurs when carving pumpkins?

Back

Physical change.

Front

How are molecules packed in a solid?

Back

Molecules in a solid are very close together.

Front

How much Iron (Fe) is present in the PRODUCTS side of the formula if it is 4?

Back

4.

Front

What type of change occurs when a car rusts?

Back

Chemical change.

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

What is the state of matter where particles are tightly packed and vibrate in place?

Back

Solid.

Front

What is the state of matter where particles are close together but can flow?

Back

Liquid.

Front

What happens to the particles in a gas when heated?

Back

They move faster and spread further apart.