5.P.2.3 Review

Front

What is a physical change?

Back

A physical change is a change in the form or appearance of a substance, but not in its chemical composition. Examples include changes in size, shape, or state (like melting or freezing).

Front

What is evidence of a physical change?

Back

Evidence of a physical change includes changes in shape, size, or state of matter, such as ice melting or paper being torn.

Front

What is a mixture?

Back

A mixture is a combination of two or more different substances that retain their individual properties. Examples include salad, air, and sand.

Front

What happens to the mass of water when it freezes into ice?

Back

The mass of the ice is the same as the mass of the water before it froze.

Front

What is the best example of a physical change?

Back

Ice melting is the best example of a physical change.

Front

What kind of change occurs if matter changes in amount, size, or shape?

Back

A physical change occurs if matter changes in amount, size, or shape.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change affects only the form of a substance, while a chemical change results in the formation of new substances.

Front

Can a physical change be reversed?

Back

Many physical changes can be reversed, such as freezing and melting water.

Front

What is an example of a reversible physical change?

Back

An example of a reversible physical change is water freezing into ice and then melting back into water.

Front

What is an example of an irreversible physical change?

Back

An example of an irreversible physical change is cutting a piece of paper.