Matter

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Across
  1. 4. the way a substance reacts with others to form new substances with different properties.
  2. 5. substances are not uniformly mixed
  3. 7. the smallest unit of a substance that exhibits all of the properties characteristic of that
  4. 9. to change the color,heat,gasses,or percipitate in any form thats difficult to reverse.
  5. 10. a characteristic of a substance that can be observed or measured without changing the composition of the substance.
  6. 11. the force exerted per unit area of a surface.
  7. 13. describes 2 or more liquids that are able to dissolve into each other in various portions.
  8. 14. any matter that has a fixed composition and definite properties.
  9. 17. the chemical symbols and numbers indicating the atoms contained in the basic unit of a substance.
  10. 19. the mass per unit volume.
Down
  1. 1. a change in physical form but not in composition.
  2. 2. is anything that has mass and occupies
  3. 3. mixing occurs between individual units
  4. 6. a combination of more than one pure substance.
  5. 8. a substance made of atoms of more than one element bound together.
  6. 12. describes 2 or more liquids that do not mix into each other.
  7. 15. the smallest particle that has the properties of an element.
  8. 16. a substance that cannot be broken down into simpler substances.
  9. 18. the ability to change or move matter.