Science – How do you separate salt and pepper?

Today, in science, Year 4 looked at a variety of methods used to separate different materials. We learnt some technical words like soluble, filtration and distillation. We watched a video about clearing floating debris from The Thames and the separation of used car parts. I then asked a question, ‘How do you separate salt and pepper?’ The answer includes these technical words: balloons, friction and static electricity. Tomorrow, the children will have time to finish the experiment in their best writing. Keep it neat and label diagrams!

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Friction Experiment with Jelly and Oil

This afternoon the children experimented with jelly and oil. They timed themselves fishing a jelly cube out of a cup with chop-sticks and then predicted what would happen if they added oil to the jelly and chop-sticks. There were plenty of laughs and frustrated faces as the kids attempted to catch their prey. We finished our enquiry by writing up the experiment with a conclusion and diagram. Well done everybody!

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Parallel circuits in science.

Today, in science, the children built some parallel circuits. They used a number of different components too; including motors, bulbs and buzzers. Part of the challenge was to make their own switches with cardboard, split pins and paperclips. Using their newly acquired knowledge of electrical flow, they were able to rig LED lights with Cathode and Anode points. Electrifying!

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