Matter Part 1 Review

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Across
  1. 2. Something you keep the same in an experiment to make sure it's a fair test
  2. 4. A state of matter that has a definite volume but takes the shape of its container
  3. 6. Group in an experiment that does not receive the experimental treatment
  4. 7. The outcome or result that is measured and that is expected to change based on what is manipulated in an experiment
  5. 9. Energy transferred between systems due to a temperature difference, flowing from a hotter object to a cooler one
  6. 10. A graph that shows how the temperature of a substance changes as it is heated over time
  7. 11. A temperature scale used in science that starts at absolute zero, the coldest possible temperature where all molecular motion stops
  8. 13. a temperature scale with water freezing at 32°F and boiling at 212°F
  9. 14. A phase transition where a substance changes directly from a solid to a gas, bypassing the liquid state
  10. 16. Scale based on 0° for the freezing point of water and 100° for the boiling point of water
  11. 17. Gas turning into plasma
  12. 22. A phase transition from the liquid to the gas state
  13. 23. Plasma turning into a gas
  14. 24. The energy it takes to melt a solid into a liquid
  15. 25. All matter is composed of tiny particles (atoms, molecules, or ions) that are in constant, random motion
  16. 26. A state of matter with no fixed shape or volume
  17. 27. The fourth state of matter, which is an ionized gas found in stars and lightning
  18. 28. A graph that shows how a substance's temperature changes as it cools down and changes from a gas to a liquid to a solid
Down
  1. 1. The coldest temperature that is theoretically possible
  2. 3. The energy needed to turn a liquid into a gas at a constant temperature
  3. 5. The process where a liquid changes to a solid state as it cools
  4. 8. A measure of the average kinetic energy of the particles within a substance, indicating how hot or cold it is
  5. 12. The phase transition of a substance from a solid to a liquid, driven by an increase in internal energy
  6. 15. A state of matter where the particles are packed tightly together, giving it a fixed shape and volume
  7. 18. The factor you change in an experiment
  8. 19. The process where a liquid turns into a gas (vapor) below its boiling point
  9. 20. The phase transition where a substance changes directly from a gas to a solid without passing through the liquid state
  10. 21. The phase transition from gas to liquid