Tuesday, KS2 Outer Space Day
Finding out about asteroids and making craters!
Year 3 and Year 4 have had an amazing time thinking about asteroids and craters with Dr Simon Sheridan. He brought in
an amazing sample of meteorites, including a rock that came from Mars, one that was formed in a supernova (left) and at 4.56 Billion years old, the oldest rock the children will ever hold!
The children then tested the hypothesis that ‘the faster a meteorite is travelling, the bigger the crater formed’ by conducting an experiment to simulate rocks forming craters at different speeds. This re-created NASA experiments from 50 years ago…and our hypothesis was right!
Year 3 also Investigated yeast - they began by making dough for bread rolls. Children explained what they thought would be happening by adding yeast and sugar. While dough was proofing, pupils took part in a class investigation mixing yeast, water and sugar in a bottle and putting a balloon on top. They were fascinated to observe the chemical reaction creating carbon dioxide bubbles to rise and blow up the balloon! Their rolls were baked with discussions about the small holes created by carbon dioxide bubbles in the oven. They discussed that the yeast caused the dough to rise as it cooked.