Chapter 2 Vocabulary

123456789101112131415161718
Across
  1. 3. A physical combination of two or more substances in a changeable ratio
  2. 4. A pure substance that consists of atoms with the same atomic number
  3. 5. a gas-like state, of matter, formed at very high temperatures, that consists of high-energy ions and free electrons
  4. 6. The space enclosed or occupied by an object.
  5. 9. A particle consisting of two or more atoms covalently.
  6. 10. The state of matter in which particles are close together but able to move
  7. 16. A model often expressed as a mathematical equation that describes phenomena under certain conditions.
  8. 17. The force of gravity actng on the matter in an object
  9. 18. Anything that has and occupies space
Down
  1. 1. A mixture that does not have a uniform appearance since the combined substances are unevenly disturbed
  2. 2. A model that states that all physical matter exists in the form of particles.
  3. 5. A material made of only one kind of element or compound
  4. 7. A pure substance consisting of atoms of two or more elements that are chemically combined in a fixed ratio
  5. 8. The state of matter in which particles vibrate in fixed positions giving a substance a fixed shape and volume
  6. 11. A mixture that has a uniform appearance throughout; also known as a solution, especially of a solid dissolved in a liquid
  7. 12. The building block of all mater consists of protons, elctrons, and usually neutrons.
  8. 13. The measure of the amount of matter in an object.
  9. 14. The state of matter in which particles are far apart, move rapidly and have little interaction with each other
  10. 15. The mass per unit volume of an object