building materials

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Across
  1. 2. - break a small piece off; a small broken piece.
  2. 3. - focus; a strong substance.
  3. 4. - closely compacted.
  4. 5. - easily broken.
  5. 7. - compress; tightly packed.
  6. 8. - break; damaged.
Down
  1. 1. - mix into a liquid; soluble.
  2. 4. - weaken a liquid; diluted.
  3. 5. - obstruct; a solid piece of material.
  4. 6. - small piece of bread; trivial.
  5. 9. - press violently; a crowd.