Science / Design & Technology KS2: Investigating friction
Dr Yan and children from Links Primary School in London investigate friction by trying to separate two interleaved books.
Friction with the ground is one reason why Bloodhound SSC doesn't have tyres.
They use spinning discs and jelly to show how centrifugal force acts on objects spinning at high speeds.
The jelly flies all over the place, showing how Bloodhound's tyres would disintegrate because it travels so fast.
Could be used when learning about natural forces, especially when investigating friction and the centrifugal force.
You could stop the clip after the Bloodhound project has been introduce and ask the initial question "Why does Bloodhound not have tyres?"
Invite the children to make predictions on the answer, continue with the clip and help the pupils to evaluate their predictions.
Maybe use the clip to explore the centrifugal force. Show the children images of different machines and ask them to pick out those working with the centrifugal force, eg washing machines, radial honey extractors or milk separators and invite them to comment on the mechanism.
This clip will be relevant for teaching Science or Design and Technology at Key Stage 2 in England, Wales and Northern Ireland, and Level 2 in Scotland.