Science Vocabulary #2

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Across
  1. 1. States that all physical matter exists in the form of particles (atoms or molecules) in constant motion.
  2. 2. Anything about a substance that can be observed
  3. 3. Any change in matter that does not change the composition of the substance
  4. 5. Space enclosed or occupied by an object
  5. 6. State of matter in which the molecules of the substance are between a liquid and a gas
  6. 8. Does not have a uniform appearance since the substances are unevenly distributed
  7. 10. A physical combination of two or more substances.
  8. 12. law that states that matter cannot disappear, but changes states
  9. 15. Distinct groups of two or more atoms
  10. 16. State of matter in which the molecules of the substance move but the movement is free but restricted
  11. 20. State of matter in which the molecules of the substance move wildly about
  12. 21. Relatively slow form a vaporization in which particles on the surface of the liquid state obtain sufficient energy to change to the gaseous state through the random collisions with particles
  13. 27. The mass of a substance will continue to have the same whole numbered ratio.
  14. 29. Is a pure substance consisting of atoms of two or more different elements that are chemically combined
  15. 30. Mass of matter contained within a particular volume
  16. 32. Relatively fast form of vaporization that as the substance is heated the particle's energy creates a pressure equal to the air pressure outside the liquid
  17. 33. change of state from a liquid to a vapor
Down
  1. 1. A material made of only one kind of element or compound; it is not a mixture
  2. 4. They have a uniform appearance; also known as a solution
  3. 7. Describes how a substance changes in the presence of another substance or under certain conditions
  4. 9. State of matter in which the molecules of the substance do not move/retrained
  5. 11. change of state from a liquid to vapor
  6. 13. Temperature at which a substance changes from a solid to liquid
  7. 14. change of state from a solid directly to a gas
  8. 17. anything that has mass and occupies space
  9. 18. A change that alters the composition of the substance
  10. 19. temperature at which a liquid starts to boil
  11. 22. The building blocks of all matter
  12. 23. Amount of matter in an object
  13. 24. Is a pure substance that consists of atoms with the same atomic number.
  14. 25. The measure of gravity acting on the matter of an object.
  15. 26. change of state from gas to a liquid
  16. 28. change of state from a gas directly to a solid
  17. 31. Change of state from solid to liquid