States of Matter

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Across
  1. 1. — has a fixed shape
  2. 7. — moves easily from one place to another
  3. 8. — spread out and take up more space
  4. 9. — anything that has mass and takes up space
  5. 11. — spreads out to fill all available space
  6. 13. — stiff and keeps its shape
  7. 15. — how hot or cold something is
  8. 16. — can be squeezed into a smaller space
Down
  1. 2. — flows and takes the shape of its container
  2. 3. — the form of an object
  3. 4. — a tiny piece of matter
  4. 5. — become smaller
  5. 6. — how tightly packed the particles are
  6. 10. — the amount of matter in something
  7. 12. — force pushing on something
  8. 14. — the amount of space something takes up