Light + Energy

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Across
  1. 3. Energy that is stored in the bonds between atoms. Found in things such as food and petrol.
  2. 6. Movement of electrically charged particles
  3. 7. Type of energy caused by movement of atoms. Found in all hot objects
  4. 9. When a light ray changes direction because it enters a different medium
  5. 10. A mirror that curves outwards
  6. 13. The bottom of a wave
  7. 14. Lens that causes light rays to move apart
  8. 15. Energy stored in objects due to their height above the ground
  9. 17. When light rays bounce off a surface
  10. 19. A mirror that curves inwards
  11. 21. The coloured part of your eye that controls the amount of light that enters it.
  12. 22. Energy due to an object moving.
  13. 23. A reflective surface
  14. 24. The length of a wave (from crest to crest)
Down
  1. 1. Hole in the eye that allows light to enter
  2. 2. The height of a wave
  3. 4. The ray of light that hits a reflective surface
  4. 5. Tissue in the eye that is sensitive to light
  5. 6. Energy stored in stretched or squashed objects, e.g. springs, rubber bands.
  6. 8. Energy produced by vibrating objects, e.g. speech, music.
  7. 11. The top of a wave
  8. 12. Energy of electromagnetic waves, helps you to see
  9. 16. Lens that causes light rays to come together
  10. 17. The ray of light that bounces off a reflective surface
  11. 18. Protective covering at the front of the eye
  12. 20. Helps to focus light onto the retina