1. Copy and Complete
When a substance is heated, the particles ______ energy and move around more. The space between particles gets ______ and the substance ________.
When cooled, particles ______ energy. The substance _______.

2. Due in on Tuesday the 17th November
Homework
Complete the homework exercise on page 22
Due in on Tuesday the 17th November

3. What’s the matter?
Lesson 12

4. Lesson 12- Learning Intention
Compression

5. Make a date
Draw a circle on the post it provided and mark 12 and 6 on the circle (like a clock face)
You must “make a date” with two other pupils in the class- one at 12 and one at 6- write each others name down at the agreed time 12 6

6. Compression: 12 oclock partners
What does the word compression mean?
Think- 30 seconds think time, nobody speaking
Pair- Take it in turns- listen to your partners definition before giving your own- decide together on a joint answer
Share- Answers will be shared to the class

7. Compression
Compression means pressed or squeezed to reduce the volume of a material

8. Compression: 6 o’clock partners
Do you think that all states of matter can be compressed equally?
Think: 30 seconds of INDIVIDUAL think time, no speaking
Pair: Take it in turns to listen to each others answer- only one person should be speaking at a time. When both have answered, come up with a joint answer
Share: Double date- pair up with another duo and share answes

9. Task- can it be compressed?
Sit in new group (of 4) 1- resource manager 2- Time manager 3- air traffic controller 4- encourager

10. You have 5 minutes to complete the task
Can it be compressed?
Collect syringe, small piece of wood and a small beaker of water
Take plunger off syringe and put the piece of wood inside, replace the plunger- can it be compressed?
Repeat with 10 mls of water (put finger over the end- NO WATER SHOULD BE SQUIRTED)
Pour out water and repeat- draw up 20mls of air (finger over the end)
Discuss your results and fill in the table
You have 5 minutes to complete the task

11. Can solids/liquids/gases be compressed?
Class discussion
Can solids/liquids/gases be compressed?

12. Explaining compression
Why do you think solids are difficult to compress?

13. Explaining compression
Why do you think solids are difficult to compress?
Particles are very close together already meaning that it isn’t possible to squeeze them any closer

14. Explaining compression
Discuss the particle arrangement and compression of liquids

15. Explaining compression
Discuss the particle arrangement and compression of liquids
Particles are close together with hardly any space between them- difficult to get particles any closer

16. Explaining compression
Why is it easier to compress a gas?

17. Explaining compression
Why is it easier to compress a gas?
Particles are far apart with lots of space between them- it is easier to squeeze them together.

18. In your groups
Work TOGETHER to summarise today’s lesson into one sentence to be shared with the rest of the class