Science ch2 vocabulary

123456789101112131415161718192021222324252627282930313233
Across
  1. 3. A pure substance that consists of atoms with the same atomic number.
  2. 4. The relatively fast form of vaporization in which the energy within a liquid creates a higher pressure within within the liquid than the air pressure outside the liquid.
  3. 6. Anything about a substance that can be observed or easured without altering its chemical composition.
  4. 8. A particle consisting of two or more atoms covalently bonded together.
  5. 11. The measure of the amount of matter in an object.
  6. 12. A model that states that all physical matter exists in the form of particles.
  7. 13. The change of state from a liquid to a solid.
  8. 14. The state of matter in which particles vibrate in fixed positions, giving a substance a fixed shape and volume.
  9. 15. A pure substance consisting of atoms of two or more elements that are chemically combined in a fixed ratio
  10. 17. A change that alters the chemical composition of a substance.
  11. 20. The law that states that the masses of chemical substances combine in definite, characteristic integer ratios when forming compounds.
  12. 21. A gas-like state of matter, formed at very high temperatures, that consists of high-energy irons and free electrons.
  13. 22. The state of matter in which particles are far apart, move rapidly, and have little interaction with each other.
  14. 23. The temperature at which a solid turns to a liquid.
  15. 24. The change of state from a liquid to a gas.
  16. 26. The building block of all matter; consists of protons, electrons, and neutrons.
  17. 29. A mixture that has a uniform appearance throughout; also known as a solution, especially of a solid dissolved in a liquid.
  18. 31. The temperature at which a liquid starts to boil.
  19. 32. The space enclosed or occupied by an object.
  20. 33. The mass per unit volume of an object
Down
  1. 1. The law that states the matter can neither be created nor destroyed, but can only change form.
  2. 2. The change of state from a solid to a liquid.
  3. 5. The change in state directly from a gas to a solid without condensing first.
  4. 7. Any change in matter that does not alter its chemical or nuclear composition.
  5. 9. A property of a substance the describes how its chemical identity changes in the presence of another substance or under certain conditions.
  6. 10. The change of state from a gas.
  7. 16. A material made of only one kind of element or compound.
  8. 18. The relatively slow form of vaporization in which liquid particles obtain suffitient energy to change to the gaseous state through the random collisions of particles
  9. 19. A mixture that does not have a uniform appearance since the combined substances are unevenly distributed.
  10. 25. The force of gravity acting on the matter in an object.
  11. 27. The state of matter in which particles are close together but ale to move around
  12. 28. A physical combination of two or more substances in a changeable ratio.
  13. 30. The change in state directly frim a solid to a gas.