Composition of Matter

A change that produces one or more new substances is called a ____________________ change.

A substance that undergoes a ____________________ change is still the same substance after the change.

A (an) ____________________ mixture is formed when two or more substances are so evenly mixed that you can’t see the different parts.

Dissolving a spoonful of sugar in tea or coffee is an example of a(an) ____________________ change.

A (an) ____________________ is a substance formed from two or more elements that are chemically combined in a set ratio.

In a (an) ____________________ mixture, like a salad, you can see the different parts.

Soil, a salad, and sugar water are all examples of _____.

Which of the following is NOT an example of a chemical change?

• gas burning on a stove

• rust forming on an iron fence

• salt dissolving in a glass of water

• using electricity to break down water into hydrogen and oxygen

Substances that CANNOT be broken down chemically into other substances are _____.

Burning wood is an example of a ________ change.