Unit 2 Crossword Puzzle
Across
- 1. A push or a pull
- 3. The force of attraction between two objects
- 5. Major organ in the Respiratory System
- 9. System; supplies oxygen and CO2
- 10. Pumps blood throughout body
- 11. Tubes that carry blood
Down
- 2. System; transports blood
- 4. A fluid that carries gases around body
- 6. System; all bones in the human body
- 7. Means to breathe
- 8. Groups of organs that work together