SCIENCE project amzing harsha grade 81.pptx

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1. electricity CH-14

2. Static electricity Balloons stick to the wall because of Static electricity. Electrons are transferred from the wool to the balloon. This static electricity was generated by the action of rubbing the balloon, which made some of the electrons move onto the balloon and they stayed there

3. Conductors and insulators Conductors- which allow electrons to move through for some materials. Insulators- which do not allow electrons to move through for some materials.

4. Early investigations with electricity Volta demonstrates his battery to napoleon Volta wrote to royal society in London About his inventions so that other scientists could learn how to construct it. Luigi Galvani Luigi Galvani (1737-1798) belived that he had discovered ‘animal electricity’. Galvani studied how human and animals bodies were constructed, but he also generated static electricity in his laboratory. Copper and zinc strips in sodium chloride solution Later volta re-designed his battery into a pile of copper of zinc discs. The copper and zinc discs were separated by cardboard that has been soaked in salt solutions.

5. Circuits symbols IN NEXT PAGE IT IS A SURPRISE UNTILL THAT PLEASE OPEN PG NO. 160 IN YOUR SCIENCE TEXTBOOK.

6. CIRCUIT PHET CREATE YOUR OWN CIRCUIT THIS WILL TAKE 2 MINS https://phet.colorado.edu/sims/html/circuit-construction-kit-ac/latest/circuit-construction-kit-ac_en.html