Electric sparks:
1: why do clouds become charged? Because they contains tiny crystals of ice which are constantly moving and rubbing on each other.
2- What is a flash of lightning? When is a lightning produced? Is an avalanche of electrons?
It´s produced when a thundercloud can become so highly charged that huge numbers of electrons jump the gap between a cloud and earth.
3- What special precautions are taken in factories using flammable materials? Why are these precautions taken? The workers have to wear special shoes and clothes which don´t build up charges. Because even the smallest spark can produce an explosion.
4- Have you ever produced sparks? If so, explain what happened. Yes I did, when I was near to the TV and it give me a little bit of charge and then I touch another person because we have different charges so it produces a little sparks.
5- Airplanes become charged up when they fly through clouds. Explain why.
´cause they have to cross the clouds so the airplane takes the charge of the clouds and they don´t have any form to throw the energy to the earth, so when it arrive it throw the energy to the earth.
6- What causes a clap of thunder? The energy of the clouds and the energy of the earth found each other and when it happened it produce sound.
- Why tall buildings have lightning conductors?
- Cause is more probable that a spark fall in the tall buildings so they need a conductor to can throw all the energy that can fall in the building and throw it to the earth