MrBadmusAI

Year 8 · Spring Second Half

Chemistry

4 lessons from 1 unit.

Unit C6 · lessons 3 to 6 of 7

Acids and alkalis

An acid and an alkali are not things you can see, weigh or smell. They are things a substance does — to a dye, to a metal, to each other — and this unit is about reading those behaviours, predicting them, and using them on purpose.

  1. 03NeutralisationProcessMix the two most dangerous bottles in the lab in the right amounts and you can pour the result down the sink. Where did the danger go?Open this lesson
  2. 04Acid + metalProcessDrop magnesium into acid and the tube fizzes hard enough to warm your hand. Drop copper in and nothing happens at all — for a week.Open this lesson
  3. 05Acids and carbonatesProcessA cathedral has stood for eight hundred years and the faces on its statues have gone. Nobody touched them — the rain did it, one reaction at a time.Open this lesson
  4. 06Making a pure dry saltInvestigationBlue crystals big enough to hold, grown from a beaker of clear acid and a spoonful of black powder. Every step of getting there is a decision you can get wrong.Open this lesson

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