Conductors and Insulators
Explore the properties of conductors and insulators with this interactive Grade 4 science worksheet, featuring multiple choice, fill-in-the-blanks, and short answer questions.
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Conductors and Insulators
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Read each question carefully and answer to the best of your ability.
1. Which of the following materials is a good conductor of electricity?
Rubber
Copper
Plastic
Wood
2. What is the main purpose of an insulator in an electrical circuit?
To allow electricity to flow easily
To stop the flow of electricity
To make the circuit brighter
To create heat
3. Materials that allow electricity to pass through them are called .
4. Materials that do not allow electricity to pass through them are called .
5. A plastic covering on an electrical wire acts as an .
6. Look at the circuit diagram below. Identify one conductor and one insulator shown in the diagram.
7. All metals are good conductors of electricity.
True
False
8. Glass is an example of an insulator.
True
False
Use the words below to complete the sentences.
9. A material that blocks the flow of electric current is an .
10. Copper is a good because it allows to pass through it easily.