Light and Sound Enegry

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Across
  1. 2. Materials that allow no light to pass through
  2. 4. Materials that allow some light to pass through.
  3. 6. When some of the light is blocked from an opaque object.
  4. 8. The loudness and softness of a sound.
  5. 9. When energy or a substance is taken in.
  6. 12. When light waves bend through an object. A prism is used for this.
  7. 13. Sound travels best through a ________.
  8. 14. When plucked, a thin string creates a _____ pitch.
Down
  1. 1. When light and sound waves bounce off a surface
  2. 3. An object that is used to bend light.
  3. 4. Materials that allow all light to pass through.
  4. 5. When looking at a straw through water, the straw _______ due to the water refracting light.
  5. 7. The back and forth movement that creates sound.
  6. 10. The highness and lowness of a sound.
  7. 11. Sound and Light are forms of ________.