SS2 Crossword Puzzle

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Across
  1. 1. substance that undergoes change during a reaction
  2. 3. the rate at which something moves
  3. 5. flows freely and has consistent volume
  4. 8. each of two or more forms of the same element with equal protons but different neutrons
  5. 10. energy that is produced and used to operate something
  6. 11. flow of electricity
  7. 13. energy of physical action or movement
  8. 14. force that attracts something towards center of Earth
  9. 15. force exerted on a mass by gravity
  10. 16. mass/volume
  11. 17. firm and stable in shape
  12. 21. the intensity of heat in a substance
  13. 24. no fixed shape or volume
  14. 25. pressed out of shape without breaking
  15. 26. the amount of space a substance or object occupies
Down
  1. 2. a multiplier or factor that measures some property
  2. 4. a force expressed in volts
  3. 6. an atom with a net electrical charge due to the loss or gain of one or more electrons
  4. 7. the speed of something in a given direction
  5. 9. obscuring light from one celestial body by another passing it
  6. 12. alternating rise and falling of the sea
  7. 18. a soft glow making something partially reflective
  8. 19. the quantity of matter which something contains
  9. 20. relating to or resembling metal
  10. 22. a flat or level surface
  11. 23. throwing something back without absorbing it