Friction Ski Jumpers

Both P7 classes have been learning about forces this term. Today, we learned about friction and talked about some activities use friction (bike brakes, hiking boots, car tyres, fingerprints) and others try to avoid friction (skiers, car engine parts, curling). In pairs, we built two ski jumpers – one that would slide first and fastest down the slope and one that would stick to the slope and be the last ski jumper standing. We explored which materials would be slippy or sticky and how we could these materials to slide or stick successfully.