Science Chapter 2 – 2.9 – 2.13

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Across
  1. 3. Faster sound vibrations make _____ pitches.
  2. 4. the measure of a wave’s strength is _____.
  3. 5. When light bounces, or is thrown back, changing its direction, it is a _____.
  4. 7. Sound waves travel fastest through _____.
  5. 10. Sixth color of the spectrum.
  6. 11. _____ travels faster than anything else.
  7. 13. Material that allows no light to pass through is _____.
  8. 15. Material that transmits light, allowing it to pass straight through is _____.
  9. 17. The loudness or softness of sound is _____.
  10. 18. Fourth color of the spectrum.
  11. 19. A dark area or shape cast by an opaque object is a _____.
  12. 20. A _____object can give off light.
Down
  1. 1. Second color of the spectrum.
  2. 2. Material that allows light through but scatters it so objects cannot be clearly seen is _____.
  3. 6. _____ is the bending of light rays as they enter a new material.
  4. 7. light always travels in a _____ line.
  5. 8. Each color of the color spectrum has a _____ wavelength.
  6. 9. Fifth color of the spectrum.
  7. 10. To move rapidly back and forth is to _____.
  8. 12. Third color of the spectrum.
  9. 14. The highness or lowness of sound is _____.
  10. 16. First color of the spectrum.
  11. 19. The form of energy that is released when an object vibrates is _____.