Insulators and Conductors
Explore the properties of insulators and conductors with this Grade 7 science worksheet, covering definitions, examples, and applications.
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Insulators and Conductors Worksheet
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Read each question carefully and answer to the best of your ability. This worksheet will test your understanding of electrical and thermal insulators and conductors.
1. Which of the following best describes an electrical insulator?
A material that allows electricity to flow easily.
A material that blocks the flow of electricity.
A material that conducts heat well.
A material that is always made of metal.
2. Which of the following is an example of a good thermal insulator?
Copper wire
Aluminum foil
Wool sweater
Iron pan
3. Materials that allow heat and electricity to pass through them easily are called .
4. Plastic and rubber are commonly used as electrical to prevent shocks.
5. A thermos keeps hot liquids hot and cold liquids cold because it is designed to be a good thermal .
6. All metals are good electrical conductors.
True
False
7. Air is considered a good thermal insulator.
True
False
8. Explain why the handle of a metal cooking pot is often made of plastic or wood.
9. Look at the image below of an electrical insulator found on power lines. Why is it important for these insulators to be made of materials that do not easily conduct electricity?
