Across
- 3. an accomplishment of completing a job with minimum effort
- 6. System- brings in oxygen and gets rid of carbon dioxide
- 7. and Axle- a simple machine involving two circular objects
- 8. Speed- speed that changes
- 11. cell division of the cells
- 12. System- a group of organs that work together
- 14. Cycle- a continuous process in which the water moves to the atmosphere and back
- 15. distance/time
- 16. Quality- the condition of the air based on the pollution in it
- 17. the transfer of heat by movement of a fluid or gas
Down
- 1. a group of similar cells
- 2. Wind- wind that travels great distances in steady patterns
- 4. System- heart, blood vessels, blood; move nutrients throughout the body
- 5. tiny cell structure that carries out a specific function within the cell
- 7. Blood Cell- fights disease
- 9. Mass- a large body of air that has the same temperature and moisture level throughout
- 10. wispy, feathery clouds
- 11. reproduces reproductive cells sexually reproducing organisms
- 13. Point- a place or object used for comparison
- 17. Wall- a structure that surrounds the cell membrane and provides support to the cells