1. 08 / Thursday
Kaupapa:
Observe and discuss more evidence that supports Particle Theory

2. Do you remember? What are the three physical states of matter?
What is particle theory?
Define “particles”

3. Particle Theory Everything is made up of tiny particles.
Particles are defined as “the smallest bits” of a substance.
The particles are active (they are constantly moving).

4. Solid
Liquid
Gas

7. Particles in a solid – animation

8. Evidence of Particle Theory

9. Solid
Liquid
Gas

10. Particle Theory Everything is made up of tiny particles.
Particles are defined as “the smallest bits” of a substance.
The particles are active (they are constantly moving).

11. Particle Theory (contd.)
When the particles absorb heat (when they are heated), they become more active.

13. Make particles more active

14. “Particle Theory”
Are you convinced?

15. More Evidence: Air Expansion

17. Then why does the balloon expand?
Because there is no air going in or coming out of the balloon and the bottle, the number of particles inside is not changed.
Then why does the balloon expand?
Because – when the particles are heated, they become ______ ______ and apply more pressure from inside.

19. More Evidence: Collapsing Cans

20. What have we learnt today?
What is particle theory?
Describe some evidence that supports the theory

21. Demo: Oobleck