MrBadmusAutumn First Half

Year 7 · Autumn First Half

Chemistry

4 lessons from 1 unit.

Unit C1 · lessons 1 to 4 of 6

Particles and their behaviour

Everything around you — this page, the air in your lungs, the water in a glass — is built from particles far too small to see. This unit builds that idea, then pushes it until it nearly breaks.

  1. 01The particle modelModel50 ml of water and 50 ml of alcohol make 97 ml, every time. What does that tell us about liquids?Open this lesson
  2. 02Solids, liquids and gasesContrastIce, water and steam are the same substance. So what exactly is different about them?Open this lesson
  3. 03Changes of stateProcessPut a beaker of ice on a hot ring and the temperature climbs. Then, for six full minutes, it stops climbing — while the flame is still on. Where is that energy going?Open this lesson
  4. 04Gas pressureModelA used-up aerosol can carries a warning: do not put it on a fire, it may explode. What would make it burst?Open this lesson

Back to all three sciences this half term The whole KS3 Chemistry course