"Space Race" Crossword Puzzle

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Across
  1. 4. remote undistinguished
  2. 5. hardened
  3. 8. physics, the science of using models to explain or predict natural events
  4. 9. field, barrier; area in which the Earth's forces keep things from entering our atmosphere
  5. 11. boxes, collections of increasingly complicated problems
  6. 12. ability to recover from hardship
  7. 13. lunar basalt fields
Down
  1. 1. blowing a stream of rough material against a surface to smooth it
  2. 2. biological, bodily
  3. 3. thickness, solidity
  4. 6. ability to find creative solutions to problems
  5. 7. ability to adjust to new situations
  6. 10. violent,and natural