Across
- 1. – An animal with a backbone.
- 3. – A cell without a nucleus.
- 5. circuit – A broken path where electricity cannot flow.
- 9. system – The system that moves blood (heart, blood).
- 11. system – The system that breaks down food (stomach).
- 14. – A feature or characteristic of an organism.
- 15. circuit – A complete path where electricity can flow.
Down
- 2. – A cell with a nucleus.
- 4. device – A part that uses electricity (like a lightbulb or buzzer).
- 6. source – Something that gives energy to a circuit (like a battery).
- 7. system – A group of organs that work together.
- 8. – A path that electricity can flow through.
- 10. system – The system that helps you breathe (lungs).
- 12. – A device that opens or closes a circuit.
- 13. – An animal with no backbone.