1. Particle Theory

2. Particles in different states

3. Changes of State Solid Melting Sublimation Freezing Condensation
Liquid
Gas
Evaporation

4. 1) All matter is made up of tiny particles that have empty spaces between them.
The Particle Theory

5. 2) Different substances are made up of different kinds of particles
The Particle Theory

6. 3) Particles are in constant motion
The Particle Theory

7. 4) The particles of a substance move faster as its temperature increases
The Particle Theory

8. 5) Particles attract each other
The Particle Theory

9. Atom vs Molecule
A molecule consists of two or more atoms held together in a definite arrangement by very strong chemical bonds.
Examples: Oxygen (O2), Water (H20),
The atom is the basic unit of matter.
It is composed of subatomic particles called electrons, neutrons and protons.
Different elements are simply atoms with a different number of protons, neutrons and electrons
Examples: Gold (Au), Silver (Ag), Copper (Cu)

10. Element vs Compound
An element is a pure substance consisting of one type of atom.
Elements appear in the periodic table.
Examples: Helium (He), Nitrogen (N), Carbon (C), etc.
A compound is a pure substance consisting of two or more different elements.
They can be separated into simpler substances by chemical reactions.
Examples: Salt (NaCl), Water (H20), Hydrogen Peroxide (H2O2), etc.

11. Particle Theory Scenarios
Can You ACT????
Gas to Liquid Video