1)Why are they connected to the live wire?
2)What is the function of the power station?
3)It is more advantageous to connect an electrical appliance o a 3-pin plug than a 2-pin plug.Explain why?
4)Sugget a suitable fuse to be used
5)Which phenomenon causes solar wind?
6)Explain the effects of solar flares on the earth.
7)Describe briefly how the sun generates energy.
8)What is the name of our galaxy?
9)There are billions of galaxies in the Universe.What is meant by the Universe?
10)Is the Solar System part of the Universe?
11)Is the Universe permanent?
12)Give two reasons why the sun is Important to life on earth.