Across
- 3. Atomic energy
- 4. Problem-solving steps
- 7. Guess or predict
- 10. Movement-related
- 12. Rearrange numbers
- 14. Hard to find
- 16. Change to fit
- 17. Path or course
- 19. Figure out
- 20. Possibility
Down
- 1. Varied, different types
- 2. Bold, shameless
- 5. Watch carefully
- 6. Answer or react
- 8. Strength or energy
- 9. Show or prove
- 11. Grow or develop
- 13. Natural world
- 15. Substance in science
- 18. Sudden