36390_ElecSafetyWorld-SanteeCooper

Did You Guess Right? Get two D batteries, a flashlight bulb, and four pieces of insulated copper wire stripped at the ends. Set up the materials as they are shown in the illustrations. (Hint: use tape to hold your circuit together.) Were you right about which circuits were closed and which were open? l Open l Closed Why? l Open l Closed Why? l Open l Closed Why? l Open l Closed Why? l Open l Closed Why? l Open l Closed Why? Which of these circuits are closed paths that will allow electricity to travel in a loop and make the bulb light? Show whether each circuit is closed or open by putting an “X” in the correct circle. Write why you think so. Which Bulbs Will Light? 7