Matter Unit

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Across
  1. 3. A change of state from solid to liquid
  2. 8. Facts or events that can be observed
  3. 10. Anything that takes up space and has mass
  4. 11. What is observed or measured in a controlled experiment
  5. 13. A state of matter that has a definite volume but no definite shape. It flows and takes the shape of the container it is in
  6. 15. A change of state from gas to liquid
  7. 16. A comparison of the mass of a solid, liquid, or gas to its volume
  8. 17. An increase in volume, usually due to heating
  9. 18. A type of matter that is made up of only one kind of particle
  10. 22. A possible explanation for a phenomenon that can be tested scientifically
  11. 23. The smallest unit of a substance
  12. 24. A change from one state of matter to another
  13. 25. A change of state from a liquid to a solid
  14. 26. Includes solid, liquid, and gas
  15. 27. A measure of how hot something is
Down
  1. 1. The amount of space a solid, liquid, or gas takes up
  2. 2. A decrease in volume, usually due to cooling
  3. 4. An investigation in which one variable is changed and all other variables are kept the same
  4. 5. A state of matter that has neither definite shape nor definite volume. It flows easily and expands to the size of the container it is in
  5. 6. A condition or factor that can influence the outcome of an experiment
  6. 7. Describes what you expect to happen based on what you know
  7. 9. A condition or factor that is intentionally kept constant in an experiment to ensure a fair test
  8. 12. The constructed facilities that help to run a society, such as bridges, buildings and roads
  9. 14. A condition or factor that is changed to determine what effect, if any, the change will have on the responding variable in a controlled experiment
  10. 19. A change of state from liquid to gas
  11. 20. A state of matter that has a definite shape and volume
  12. 21. The amount of matter in a solid, liquid, or gas