What's the Matter

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Across
  1. 3. in the metric system, the unit of mass is called ____
  2. 4. the temperature at which a liquid becomes a solid (two words)
  3. 5. how an object looks and behaves
  4. 10. a measure of how much matter "bounces back" light
  5. 14. the measure of the heaviness of an object
  6. 16. when it comes to measuring, think ______
  7. 17. the distance of an object from side to side
  8. 18. you, as a big thing of matter, are made of
  9. 22. the measure of how easily matter transports heat or electricity
  10. 23. the temperature at which a liquid turns into a gas (two words)
  11. 24. particles in a solid are so tightly packed together that they _______ (two words)
  12. 25. matter that has no definite size or shape
Down
  1. 1. observable, measurable characteristics of an object
  2. 2. the "stuff" of the universe
  3. 6. matter is anything that has weight and takes up
  4. 7. the temperature at which a solid turns into a liquid (two words)
  5. 8. the International System of Units is also known as _______ (two words)
  6. 9. the distance of an object from bottom to top
  7. 11. the amount of space an object takes up
  8. 12. the distance of an object from end to end
  9. 13. objects that allow light to pass through them have high _______
  10. 15. things like feet, pounds, and gallons are called ____
  11. 19. a meter is divided into 100 smaller pieces of equal size called _____
  12. 20. matter that has a definite size and shape is in the _____ state
  13. 21. matter that has a definite size but no definite shape