This week 4B completed their final sparky scientist task in order to earn the prestigious title of Junior Electrician. Our sparky scientist question was: have you ever received an electric shock and wondered how it happened? To explore the concept of static electricity, the children carried out some exciting experiments and learnt all about atoms, protons and electrons. See below for details and our whole class findings.
Once we had charged up the balloon by rubbing it on our hair, jumper or the carpet, we placed the balloon near some bits of tissue paper. The parts of the paper closest to the balloon became positively charged. They stuck to the negatively charged balloon because opposite charges attract.
Repulsion/balloon fall out
When we tied string to and hung two charged balloons next to each other, they pushed away from each other because they were both negatively charged. We discovered that like charges repel each other.
All mixed up: separating salt and pepper.
After placing a mixture of salt and pepper on a surface, we rubbed the balloon on our heads. By slowly placing the charged balloon near to the salt and pepper mixture, we observed that the pepper (being lighter) was the first of the two to be attracted to the balloon.
Sparky Scientist Questions of the Week
Have a go at answering the below think like a scientist questions.
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