1. Has mass and takes up space
Matter
Has mass and takes up space

2. What is matter made of? Matter is made of elements
Elements are the basic building blocks of all matter.

3. Elements Are pure substances
They cannot be broken down into simpler substances.
There are 100 known elements that combine to make up all matter.
Each element has its own kind of atom.

5. Atoms Are the smallest unit of an element. Are made up of 3 particles
Protons-positive charges
Neutrons-neutral
Electrons-negative

6. Atoms All atoms have a nucleus in the center.
Inside the nucleus are protons and neutrons.
Outside the nucleus are electrons.

7. Compounds
Are any substance that is formed by two or more elements being chemically combined.
There are many different compounds because the elements can combine in so many different ways.
Examples:
Water H2O
Salt NaCl
Carbon Dioxide CO2

8. Molecules Are the smallest part of a compound.
Contain more than one atom.