Across
- 2. clear lens in front of the eye that allows for the passage of light into the eye.
- 3. transmits electrical signals from the retina to the brain
- 4. distance from any point on one wave to a corresponding point on the next wave.
- 6. The part of a longitudinal wave where the particles are closer to each other
- 8. black hole where light enters the eye.
- 10. transmits electrical signals from the retina to the brain allows us to see objects near and far
- 11. a wave that moves at right angles or perpendicular to the direction that it travels
- 14. The vibrations in the ground that result from movement along breaks in Earth's lithosphere.
Down
- 1. a wave in which the disturbance (vibration) is in the same direction as that in which the wave is traveling
- 5. distance from the resting point to the crest or trough.
- 7. a wave produced by an earthquake
- 9. contains the photoreceptors which convert light waves into electrical signals
- 12. part in a longitudinal wave where the particles are spread apart
- 13. the number of complete waves that pass a point in a certain amount of time.