Electricity and Circuits

What is the difference between conductor and an insulator? Explain with examples.

Define conductors and insulators. Give one example of each.

Name the scientist who invented electric cell and the scientist who invented electric bulb.

Identify conductors and insulators from the following: Eraser, paper, matchstick, copper wire, pencil lead, polythene

Give one activity to prove that air is an insulator.

Mention two advantages of a dry cell.