Across
- 2. an extremely small piece of an atom with a negative electrical charge.
- 4. when devices are arranged in a single line one after another they are connected in _______ .
- 5. the amount of electricity that a substance has in it is called the electrical _______ .
- 6. a substance that allows electricity or heat to go through it.
- 7. a small part of an atom with a positive electrical charge.
Down
- 1. a material or covering that electricity, heat, or sound cannot go through.
- 3. the flow of electricity through a wire is called electrical _______.