TCI 3.6 Lesson Game Review

Conservation of matter means

• matter is always the same amount.

• matter must always be protected.

• matter always stays the same size.

• matter can never be changed.

_________does not change weight of matter.

• Changing the temperature

• Dissolving in a substance

• Mixing to cause a reaction

• all of the above

The number of particles ________when a substance contracts.

• does not change

• increases a little

• decreases a little

• decreases a lot

What happens to particles in a reaction?

• new particles are made

• particles are destroyed

• particles are conserved

• particles weight more

As the air in a balloon expands with heat, the weight

• increases slightly.

• decreases slightly.

• increases greatly.

• does not change.

How is matter conserved in a reaction?

• the particles contract

• the matter dissolves

• the particles rearrange

• the matter condenses

You can check that matter is conserved by

• checking the size.

• observing the state.

• looking at the shape.

• measuring the weight.

After wood is burned, the ash left over weighs less because

• matter was destroyed by the fire.

• gases are created by the fire.

• the ash becomes much smaller.

• the number of particles changes.

A pattern in nature with no exceptions is called a

• change.

• law.

• theory

• fact.

Weight is usually measured in______.

• ounces

• pounds

• grams

• all of the above