8th grade science

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Across
  1. 3. is anything that has mass and volume
  2. 7. a material that stops heat or electricity from stop it easily
  3. 9. the bouncing back of a wave when it hits a surface
  4. 10. a state of matter that expands to fill space
  5. 16. how fast something is moving
  6. 17. a wave caused by sounds and vibrations
  7. 18. how hot or cold something is
  8. 20. a force that opposes motion between surfaces in contact
  9. 24. is a measure of the amount of matter in an object
  10. 25. a basic building block of matter
  11. 26. is defined as mass per unit volume
  12. 27. when heat transfers through movement
  13. 28. a material that lest heat or electricity pass through it easily
  14. 29. two or more atoms stuck together
  15. 30. is the change in position an object over time
  16. 31. the ability to do something or make it happen
  17. 32. is the basic chemical element, and is a fundamental component of matter
  18. 33. when a liquid turns into a solid
  19. 34. a state of matter that moves freely
Down
  1. 1. attraction something being pulled a certain way
  2. 2. the distance between two waves tops or bottoms
  3. 4. is speed with direction
  4. 5. how much speed or force something has when its moving
  5. 6. a force being pulled or attracted by a magnet
  6. 8. a state of matter in a fixed state
  7. 11. the number of occurrences of repeating events per unit of time
  8. 12. the opposite flow of current
  9. 13. the number of complete waves, cycles that pass per unit of time
  10. 14. the bending of a wave
  11. 15. when a solid turns into a liquid
  12. 19. a push or pull
  13. 21. when heat transfers through contact
  14. 22. a strong force transmitted through objects
  15. 23. how much space something takes up
  16. 28. two of more chemicals joined together