These questions are guidelines for your exposé. Feel free to use them in whatever order you want. Give the names of the metals used as electrodes. Which one of the electrodes is the positive one and which one is the negative one. What apparatus has been used to check that there (...)

 

The following questions are guide lines for the exposé on lightning. Feel free to use them in whatever order you want. + During what season does lightning normally occur ? + Where is there concentration of lightning strokes ? + Explain by using movement of charges how lightning occurs. + (...)