215k views
2 votes
Gretchen wants to run a test to discover whether glass, copper, wood, or plastic conduct electricity. She sets up a circuit connecting a battery to a light bulb, with a small gap she will use to test the conductivity of the different substances. One at a time, she connects the circuit with the chosen test material, and records whether or not the light bulb comes on. The variables in this experiment are

2 Answers

7 votes

The plastic, wood, copper, and glass are the variables. The variables in an experiment are the things we can change and then test.

User Suraj Shingade
by
7.9k points
5 votes
battery,and i think the light bulb because it depends how much energy the light bulb needs
User Abner Terribili
by
7.9k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.