Matter Changes (Chapter 3)

When matter experiences a ______________, its properties, like size, and shape change but its composition does not change.

• physical change

• chemical change

When there's a change in the matter's composition, a ____________ happens.

• chemical change

• physical change

When matter can return to its initial state.

• reversible change

• irreversible change

When it is impossible for matter to return to its initial state.

• irreversible change

• reversible change

When a material burns or is on fire.

• combustion

• fermentation

• oxidation

Is produced by some microscopic organisms, such as bacteria and fungi, and makes it possible to turn milk into cheese or make bread.

• combustion

• fermentation

• oxidation

When metal comes into contact with oxygen in the air. The result is a red substance called iron oxide.

• combustion

• fermentation

• oxidation

Temperature is a chemical property of matter that tells us how hot an object is.

• True

• False

Answer explanation

Temperature is a physical property of matter that tells us how hot and object is.

When temperature increases the volume of a substance, the particles that make up that substance gain energy, being to move, and move away from each other.

• expansion

• contraction

When a substance cools, it looses energy and its particles move more slowly. Its volume is reduced.

• contraction

• expansion