Physical Science Crossword Puzzle

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Across
  1. 4. Located on the right side of the stairs step line. They gain electrons and have negative charge
  2. 5. Rough texture
  3. 8. The measure of kinetic energy
  4. 10. Spreads out to take up all the space available
  5. 11. Changes shape depending on the container
  6. 12. The amount of matter
  7. 14. A mathematically defined region around an atomic nucleus defined by a high probability that the atom's electrons will be present in that region
  8. 15. The ability of a substance to be made into a wire
  9. 17. A subatomic particle of about the same mass as a proton, but without an electric charge.
  10. 19. How easily something moves through a substance
  11. 23. Located on the left side of the stairs step line. Loses electrons and have a positive charge
  12. 24. Definite shape and volume
  13. 26. The ratio of mass to volume
  14. 27. A subatomic particle found in the nucleus of every atom. It has a positive electrical charge
Down
  1. 1. Average mass of a typical atom
  2. 2. Smooth texture
  3. 3. Measures the ability of an atom in a chemical compound to attract other electrons from another atom into a compound
  4. 6. How a substance looks and feels
  5. 7. Anything that has weight and takes up space
  6. 9. The ability to be pounded into sheets
  7. 13. How an object reflects lights
  8. 16. The ability to dissolve
  9. 18. The positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass
  10. 20. The amount of space an object takes up
  11. 21. A negatively charged subatomic particle.
  12. 22. The ability of being attracted by a magnet
  13. 25. 1/2 of the distance between the nuclei of identical atoms that are bonded together