1. The science that deals with the materials of the universe and the changes that these materials undergo

2. Matter Anything that takes up space and has a mass. 3 States of Matter Solid: rigid, has a definite volume and shape Liquid: definite volume but takes the shape of its container Gas: no definite volume or shape, it takes the volume and shape of its container.

3. Changes Physical Changes Chemical Changes Causes a change in physical property Colour Size Shape No new substance is formed Example: Boiling water, cutting gold in half, etc. Cause a new substance to be formed from two or more different elements Example; rusting iron.

4. Elements Building blocks of matter Listed on the Periodic Table of Elements Join together in different combinations to form all matter.

5. Compounds Substances made by bonding different types of elements together. Example: water is made from combining hydrogen and oxygen together.

6. Chemical Symbols IUPAC stands for the International Union of Pure and Applied Chemistry, which is a group of scientists from around the world who set rules for chemical symbols. Each element has a short form called a symbol. If the symbol is more than one letter, only the first letter is a capital.