Chapter 1 PEoPlE anD ElECtriCity Long ago people lit their homes with candles Now we use electricity Electricity is a form of energy It can be used in many ways How do people use electricity 4
Look around you What electrical things can you see Lights A computer A TV Electricity powers lamps computers and many other things around a home 5
safety First Electricity is helpful But it can be dangerous So remember these safety rules Don’t touch electrical outlets Keep electrical wires away from water Don’t touch cracked wires Go inside during a thunderstorm Lightning is electricity Electricity is powerful It can hurt or even kill people 6
The experiments in this book are safe But before doing them talk with an adult He or she might like to help you experiment all sC iEntists nEED to stay saFE it’s smart to Hav E an aDult’s HE lP WHEn you D o ExPErimEnts 7
