Science Crossword Puzzle

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Across
  1. 2. the number of wave lengths that pass by a point each second.
  2. 3. Are waves that can travels through matter or empty space.
  3. 6. Wavelengths that are greater then 0.3 meters
  4. 8. Causes practicals in matter to move back and forth along the same direction the wave travels.
  5. 9. A disturbance that moves through matter or space.
Down
  1. 1. The change in direction of a wave when it changes speed as it travels from one material to another
  2. 3. The complete range of electromagnetic wave frequencies and wave lengths.
  3. 4. Causes practicals in matter to move back and forth at right angles to the direction in which the wave travels.
  4. 5. The distance between one point on a wave and the nearest point moving with same speed and direction
  5. 7. The angle that incoming wave makes withe the normal equals the angle that the outgoing makes with the normal.