Chemical and Physical Changes

Front

What are the three states of matter?

Back

Solid, Liquid, Gas

Front

When molecules move in a crazy, no patterned way, what state of matter is it?

Back

Gas

Front

When molecules are close, but not super close, you are referring to a ....

Back

Liquid

Front

What is a chemical change?

Back

A change that results in the formation of new substances, such as burning wood.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without changing its chemical composition.

Front

Give an example of a chemical change.

Back

Burning wood, rusting iron, or baking a cake.

Front

Give an example of a physical change.

Back

Melting ice, boiling water, or dissolving sugar in water.

Front

What is an indication of a chemical change?

Back

Production of light, gas, or odor.

Front

Which of the following is NOT an indication of a chemical change?

Back

Production of water.

Front

What happens to molecules during a physical change?

Back

They may change form or state but remain the same substance.