Semester final crossword puzzle. by: Townes Edwards

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Across
  1. 4. Elements that are poor conductors of heat and electricity
  2. 5. A change in a substance that does not alter its chemical composition
  3. 6. Energy in motion
  4. 10. A vertical row in the periodic table
  5. 12. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force
  6. 14. Energy stored
  7. 17. A neutral particle in an atom's nucleus
  8. 18. elements with properties of both metals and nonmetals
  9. 19. The sum of all forces acting on an object
  10. 20. The ability of a substance to be hammered or rolled into sheets
Down
  1. 1. A negatively charged particle orbiting an atom's nucleus
  2. 2. Two or more atoms bonded together
  3. 3. A process that changes a substance into new substance
  4. 7. For every action, there is an equal and opposite reaction
  5. 8. Elements that are good conductors of electricity and heat
  6. 9. A horizontal row in the periodic table
  7. 11. A positively charged particle in the nucleus of an atom
  8. 13. The number of protons in the nucleus of an atom
  9. 15. Force equals mass times acceleration (F = ma)
  10. 16. The upward force exerted by a fluid on a submerged object