Science crossword puzzel

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Across
  1. 1. the only waves we can see
  2. 6. any temperature 100 Celsius or above
  3. 9. state of matter example: steam
  4. 10. there are four ___ in a calendar year
  5. 14. an invisible force that pulls objects toward each other
  6. 15. energy from a machine
  7. 16. when an object is touching the heat source, its called ___
  8. 18. the Earth is an example of a ____
  9. 20. the lowest part of the wave
  10. 22. Pluto is an example of a _____
  11. 27. energy that comes from electricity
  12. 28. the rate at how fast an object is increasing it's speed
  13. 29. when an object is placed on a high shelf, it has __ energy
  14. 30. coldest temperature in theory
Down
  1. 2. state of matter example: water
  2. 3. work is measured in ___
  3. 4. the highest part of the wave
  4. 5. when heat is directly transmitted through a substance
  5. 7. ____ waves have longest wavelengths in the electromagnetic spectrum
  6. 8. Energy that is stored in the bonds of chemical compounds.
  7. 11. measured in Mph or Kph
  8. 12. any temperature 0 Celsius or below
  9. 13. energy that comes from light
  10. 17. energy that is stored in the nucleus of an atom, is known as ___ energy.
  11. 19. process by which heat is transferred by movement of a heated substance
  12. 21. when an object is moving, it has ___ energy
  13. 23. a part of the wave where the waves are farthest apart
  14. 24. energy that comes from heat
  15. 25. measure of electrical energy
  16. 26. state of matter example: ice