Rocks and Minerals

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 4. A perceptual structure (7)
  2. 7. Hard piece of stone (4)
  3. 8. Single thickness of usually some homogeneous substance (5)
  4. 11. Produced by the action of water (11)
  5. 13. Solid homogeneous inorganic substances occurring in nature having a definite chemical composition (7)

Down

  1. 1. Someone regarded as certain to succeed (7)
  2. 2. The commonest type of solidified lava (6)
  3. 3. Of or relating to ___ (11)
  4. 5. State of matter with a fixed shape (5)
  5. 6. Plutonic igneous rock having visibly crystalline texture (7)
  6. 9. Produced by the action of fire or intense heat (7)
  7. 10. A solid formed by the solidification of a chemical and having a highly regular atomic structure (plural) (8)
  8. 12. The planet we live on (5)
  9. 13. Molten rock in the earth's crust (5)