Lesson 3 & 4 Vocabulary

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Across
  1. 4. Matter that has a constant chemical composition and characteristics
  2. 5. When a substance changes from a liquid to a gas as thermal energy is added to it
  3. 8. On a scale that people can see with their eyes
  4. 9. A characteristic of matter
  5. 11. A property that describes how well one substance dissolves in another substance
  6. 13. A property that describes the mass of a certain volume of matter
Down
  1. 1. The amount of matter in an object or sample; measured in grams
  2. 2. A property that describes how well a substance can catch on fire
  3. 3. When a substance changes from a solid to a liquid as thermal energy is added to it
  4. 6. The state of matter in which atoms or molecules are closely packed and touching one another in fixed positions
  5. 7. The amount of force exerted over a certain area
  6. 10. The state of matter in which atoms or molecules are closely packed and touching one another but are not held in fixed positions
  7. 12. The state of matter in which atoms or molecules are completely separated from one another by empty space and can move around independently of one another