Matter and Material

123456789101112131415
Across
  1. 5. The smallest building block of matter
  2. 6. The form matter can be in (solid, liquid, or gas)
  3. 8. A state of matter that spreads out to fill all the space
  4. 9. When a liquid turns into a solid
  5. 10. When a liquid turns into a gas
  6. 13. How tightly packed the matter is
  7. 15. A state of matter that flows and takes the shape of its container
Down
  1. 1. When a gas turns into a liquid
  2. 2. A tiny piece that makes up matter
  3. 3. How much matter is in something
  4. 4. When something becomes different
  5. 7. When a solid turns into a liquid
  6. 11. A feature you can observe or measure
  7. 12. What something is made of
  8. 14. A state of matter that keeps its shape