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 _______.

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

What’s the matter? Lesson 12

Lesson 12- Learning Intention Compression

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

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

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

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

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

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

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

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

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

Explaining compression Discuss the particle arrangement and compression of liquids

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

Explaining compression Why is it easier to compress a gas?

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.

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