Waves Investigation 3

1234567891011121314151617181920
Across
  1. 3. a tool that produces a very narrow, focused beam of coherent light
  2. 6. the angle of an incoming beam
  3. 9. a wave of electricity and magnetism that can travel through a medium or empty space
  4. 14. the curved path of an object around another object
  5. 16. a line that extends at a right angle (90 °) from a flat surface
  6. 18. an incoming beam
  7. 19. a beam reflected off a surface
  8. 20. a random change in an organism’s DNA; a mutation can have positive, negative, or neutral effects on the organism.
Down
  1. 1. a tool that can separate light into its different wavelengths of electromagnetic radiation
  2. 2. a steak that is a little bit pink in the middle
  3. 4. the angle of a beam reflected off a surface
  4. 5. a transparent material that can absorb certain colors
  5. 7. the bouncing back of waves off an object
  6. 8. how different wavelengths of light are perceived
  7. 10. a well-tested scientific explanation
  8. 11. the place where two different media meet
  9. 12. a force of attraction between masses
  10. 13. a measure of the quantity of matter in an object
  11. 15. a straight line that light waves travel in
  12. 17. any trait of an organism that increases its chances of surviving and reproducing