Earth and Space

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Across
  1. 4. Naturally occurring, inorganic solid having a definite crystalline structure and unique chemical composition
  2. 7. Rocks formed when chemical changes heat or pressure change a rock, "changed rocks"
  3. 8. When a mineral breaks along rough or jagged surfaces
  4. 12. The color of the powder scraped off of a mineral when rubbed against a rough hard surface
  5. 13. Rocks formed when particles of rocks (sediments) are carried and deposited by wind and water
  6. 14. Small particles of rock
  7. 15. Igneous Rocks formed from magma within the Earth
  8. 17. The continuous changing of rocks from one form to another over long periods of time
  9. 18. Minerals that are rare, hard, beautiful, and durable that are often cut for jewelry
  10. 20. Hard substances compose of two or more minerals
Down
  1. 1. Minerals or combinations of minerals from which metals and nonmetals are extracted
  2. 2. When a mineral splits into smooth definite surfaces
  3. 3. The way a mineral reflects light from its surface
  4. 5. The amount of matter in a given volume
  5. 6. Rock containing rounded pebbles that is held together by clay or mud
  6. 9. The ability of a mineral to resist being scratched
  7. 10. Repeating pattern of a mineral having flat sides that meet in sharp edges and corners
  8. 11. Igneous Rock formed from lava on the outside of the Earth
  9. 16. Rock formed from hot, fluid magma or lava
  10. 19. Elements that are shiny, conduct heat and electricity, can be stretched into wires and bent into different shapes