Front

What does the law of conservation of matter state?

Back

The law of conservation of matter states that matter cannot be created or destroyed in an isolated system; it can only change forms.

Front

If 100 grams of ice melts, what is the mass of the water produced?

Back

100 grams.

Front

What is the total mass of a solution made by dissolving 50 grams of salt in 300 grams of water?

Back

350 grams.

Front

True or False: When ice melts into water, it becomes a different type of matter.

Back

False.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What happens to the mass of matter during a physical change?

Back

The mass remains the same.

Front

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

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What happens to matter when it changes form?

Back

It is not really destroyed; it simply changes from one form to another.

Front

What is an example of matter changing form without changing mass?

Back

Melting ice to water.

Front

What is the significance of measuring mass in conservation of matter experiments?

Back

Measuring mass helps to demonstrate that matter is conserved during physical and chemical changes.