Across
- 6. alternative form of a gene
- 7. two objects used in simple machines
- 8. sinking cold air mass
- 10. two equal forces pushing away from each other
- 11. accomplishment of completing a job with reasonable time and effort
- 12. circut with more than one path
- 13. cold air under a warm air mass
Down
- 1. winds that travel great distances with steady patterns
- 2. tiny cell structure in an organism
- 3. rigid bar that moves objects around
- 4. single parent reproduction
- 5. condition of earth's atmosphere
- 9. rises from left to right