Crossword

123456789101112131415161718
Across
  1. 2. to decay by a gradual, natural process
  2. 6. difficult to live or stay in because of severe weather conditions
  3. 10. one of many small planets
  4. 12. to come off in layers from the surface of an object
  5. 13. to transform a planet to support human life and look like Earth
  6. 14. to control an area and send your own people to live there
  7. 15. a form of energy that comes from nuclear reactions, that is harmful
  8. 18. to attack a place
Down
  1. 1. a list of the places you will visit on a trip
  2. 3. to fall down or inward suddenly
  3. 4. a vehicle that travels on the surface of a planet
  4. 5. trip a journey made to and from within a day
  5. 7. ahead to make all arrangements in advance of something happening
  6. 8. to break apart in small pieces
  7. 9. having a layer of thick furry plant usually growing on soil, trees, or rocks
  8. 11. old, broken, and in very bad condition
  9. 16. out to make thorough and detailed arrangements for the future
  10. 17. season the time of year when businesses have fewer visitors and prices are cheaper