1. Complete the checkpoint on page 7 of your notes
Lesson Starter
Complete the checkpoint on page 7 of your notes

2. What’s the matter?
Lesson 4

3. Lesson 4
The particle arrangement in solids, liquids and gases

4. Particles
Everything in the world (solid, liquid and gas) is made up of tiny particles
They are too small to see (even with a microscope)

5. The states of matter Solids, liquids and gases all BEHAVE DIFFERENTLY
The way the particles are arranged help explain how the solids, liquids and gases behave

6. What do we know about solids?

7. What does this tell you about the particles in a solid?
Solids
Solids have a fixed shape and do not move on their own
What does this tell you about the particles in a solid?

8. Particles in a solid Particles in a solid are packed tightly together
They vibrate closely to the other particles
The particle arrangement explains their rigidity, fixed shape and fixed volume

9. How close are the particles?
Particles in a solid
Solid
Liquid
Gas
How do particles move?
Vibrate closely to other particles
How close are the particles?
Very close
Particle picture

10. What do we know about liquids?

11. What does this tell us about the particles in a liquid?
Liquids
Liquids are runny and can take the shape of their containers
What does this tell us about the particles in a liquid?

12. Particles are in a liquid
Particles in a liquid can move over one another into spaces
They are close (but not as close as solids)
Liquids are not rigid, they have no fixed shape but they do have a fixed volume

13. How close are the particles?
Solid
Liquid
Gas
How do particles move?
Vibrate closely to other particles
Move over one another into spaces
How close are the particles?
Very close
close
Particle picture

14. What do we know about gases?

15. What does this tell you about the particles in a gas?
Gases
Gases have no fixed shape and they can spread out to fill their container
What does this tell you about the particles in a gas?

16. Particles in a gas
Particles in a gas move quickly away from one another
The particles are spread very far apart
Gases are not rigid, they have no fixed shape and have no fixed volume

17. How close are the particles?
Solid
Liquid
Gas
How do particles move?
Vibrate closely to other particles
Move over one another into spaces
Spread out and move away from each other
How close are the particles?
Very close
close
Very far apart
Particle picture

18. To be completed for TOMORROW Page 9 in What’s the matter booklet
Homework
To be completed for TOMORROW Page 9 in What’s the matter booklet