Science Vocabulary Chapter 2

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Across
  1. 5. a pure substance that consists of atoms with the same atomic number
  2. 6. a mixture that has a uniform appearance throughout; also known as a solution, especially of a solid dissolved in a liquid
  3. 7. the state of matter in which particles are far apart, move rapidly, and have little interaction with each other
  4. 13. the law that states that the masses of chemical substances combine in defintie, characteristics integer ratios when forming compounds
  5. 14. the mass per unit volume of an object
  6. 15. the measurement of the amount of matter in an object
  7. 16. the space enclosed of occupied by an object
  8. 17. a material made of only one kind of element or compound
  9. 18. Anything that has mass and occupies space
Down
  1. 1. a particle consisting of two or more atoms covalently bonded together
  2. 2. agas-like state of matter, formed at very high temperatures, that consists of high-energy ions and free elections
  3. 3. a mixture that does not have a uniform appearance since the combined substances are unevenly distributed
  4. 4. the building blocks of all matter; consists of protons, electrons and usually neutrons
  5. 8. the state of matter in which particles vibrate in fixed positions, giving a substance a fixed shape and volume
  6. 9. a pure substance consisting of atoms of two or more elements that are chemically combined in a fixed ratio
  7. 10. a physical combination of two to more substances in a changeable ration
  8. 11. the force of gravity acting on the matter in an object
  9. 12. a model that states that all physical matter exists in the form of particles
  10. 13. the state of matter in which particles are close together but able to move around