Across
- 3. Light Human Eye Cant See
- 4. Displacement or Distance
- 6. Frequency Decreases or Increases
- 7. Direction or Bending
- 10. Wave Cycles
- 11. Spread of Waves
- 12. Moves Energy
- 13. Compressional
- 14. Measured Distance
- 15. Fast travel
Down
- 1. Travel
- 2. Waves Combine
- 5. Waves Cancel out
- 8. Light Bounces
- 9. Radiation