Grade 6: Matter

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Across
  1. 2. The process of matter changing from one state (solid, liquid, gas) to another.
  2. 5. The mass per unit volume of a substance.
  3. 8. When matter decreases in volume due to cooling.
  4. 9. A state of matter with a definite volume but no definite shape.
  5. 10. A state of matter with a definite shape and volume.
  6. 11. The amount of space an object occupies, which can change during a phase change.
  7. 12. The amount of matter in an object, which remains constant during a phase change.
  8. 13. Forces that pull particles together.
Down
  1. 1. A state of matter with no definite shape or volume.
  2. 3. When matter increases in volume due to heating.
  3. 4. Increasing the temperature of a substance, causing particles to move faster.
  4. 6. Decreasing the temperature of a substance, causing particles to move slower.
  5. 7. A theory that describes how matter is made up of tiny particles that are in constant motion.