SCIENCE

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Across
  1. 4. reflection of sound.
  2. 5. the movement of heat by touching.
  3. 11. how loud or soft a sound is.
  4. 14. light bounces off a surface.
  5. 15. a small device storing chemical energy, turning into electrical energy.
  6. 16. a tool to measure temperature.
  7. 18. rocks that change from heat and pressure.
  8. 21. to see something.
  9. 23. the main source of light.
  10. 24. production of electricity by moving water.
  11. 25. a part of the middle ear that vibrates.
  12. 26. top layer of the Earth.
  13. 28. how high or low a sound is.
  14. 29. rocks from layers of sediment.
Down
  1. 1. movement of heat through open spaces.
  2. 2. where something comes from.
  3. 3. a natural solid material that is part of the surface of Earth.
  4. 6. a material that stops the flow of heat or electrity.
  5. 7. to save or protect something.
  6. 8. a special skill animals use to locate something.
  7. 9. to shake very fast.
  8. 10. characteristics of something.
  9. 12. killed or severely injured by electric shock.
  10. 13. an electric device for cooling the air.
  11. 17. made from nature.
  12. 19. losing water and heat from our body.
  13. 20. rocks formed from magma and lava.
  14. 22. related to the Sun.
  15. 24. inactive state of sleep during winter.
  16. 27. a material that doesn't allow light to pass through.