Conservation of Matter Lesson

Conservation of Matter

Open Ended

Do you know what the three states of matter are? List them if you do.

Matter and Mass

Everything that you see is made of matter. Even some things that you do not see, like air, is matter. Matter is anything that takes up space and has mass.

All matter has mass. Mass is the amount of "stuff" in a solid, liquid, or gas. Something that is heavier has more mass.

Multiple Choice

What is matter?

• anything that has mass and takes up space

• something important

• only things that are heavy.

Multiple Choice

Which state of matter has particles that are the closest together?

• solid

• liquid

• gas

Multiple Choice

Which state of matter has particles that continue to spread out until they fill their container?

• solid

• liquid

• gas

Multiple Choice

What is it called when you add heat to a solid (like ice) and it changes to a liquid (like water)?

• melting

• freezing

• condensation

Multiple Choice

What is it called when you add heat to a liquid and it changes to a gas?

• evaporation

• condensation

• freezing

Multiple Choice

What is it called when you take away heat from a liquid and it changes to a solid?

• evaporating

• condensation

• freezing

The Law of Conservation of Matter

Even when matter changes, its mass is conserved, or stays the same.

Multiple Choice

What change occurred?

• evaporating

• melting

• freezing

Multiple Choice

What will the total weight of the ice cubes be?

• We do not know

• 8 ounces

• 16 ounces

Multiple Choice

The water weighed 150 grams. The sugar weighed 25 grams. Why did they weigh 175 grams after the sugar dissolved?

• The sugar was gone.

• The sugar was still there. It was in a different form.

• The water was heavier.

Open Ended

Tell me in your own words, what is the Law of Conservation of Matter?