2. The particle theory

3. What is a crystal made up of? Crystal

4. The particle theory What do you observe? The crystal grows slowly. This supports that: All matter is made up of particles The particles are tiny The particles are moving all the time

5. The particle theory Do particles in liquid move? The purple colour spreads out

6. The particle theory This supports that: The particles are moving all the time

7. The particle theory How do particles in gas move? Brown gas moves towards right! Brown gas

8. The particle theory This supports that: The particles are moving all the time

9. The particle theory Mixing liquids 50 cm 3 alcohol 50 cm 3 water Total = 98 cm 3

10. This supports that: Different substances are made up of different particles There are spaces between particles The particle theory

11. Perfume in a balloon The particle theory Perfume Perfume smell!

12. This supports that: The particle theory There are spaces between particles