Part A: Making Predictions

Before testing, predict whether each material will allow electricity to flow. A material that allows electricity to flow is a conductor. A material that does not allow electricity to flow is an insulator.

Instructions: Write “Conductor” or “Insulator” and explain the reason for each prediction.

Safety and Fair Test Reminder

Teacher use: Use only the classroom low-voltage circuit equipment provided by the teacher. Handle equipment carefully, keep components on the desk and report damaged equipment immediately.

Fair test: Change one material only. Keep the battery, globe and wires the same each time.

Part B: Conducting a Fair Test

Use the same complete low-voltage electrical circuit for every test. Change only the material being tested. Place the material between the connecting points, observe the globe and record evidence.

Instructions: Record whether the globe lit. Then classify the material as a conductor or insulator and describe what you observed.

Part C: Conclusion

Part D: Reflection

Part E: Exit Ticket