Unit 10

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Across
  1. 5. existing matter and space considered as a whole
  2. 6. a vehicle used for travelling in space.
  3. 10. a program enabling a computer to execute programs written for a different operating system
  4. 12. on or relating to the earth.
  5. 15. certain to happen; unavoidable.
  6. 19. scattered pieces of rubbish or remains.
  7. 20. the action of exploring an unfamiliar area.
Down
  1. 1. a small rocky body orbiting the sun
  2. 2. (of a place) unsuitable for living in
  3. 3. start or set in motion (an activity or enterprise).
  4. 4. the force that attracts a body towards the centre of the earth, or towards any other physical body having mass.
  5. 7. the universe seen as a well-ordered whole.
  6. 8. become accustomed to a new climate or new conditions
  7. 9. strengthen or support physically or mentally.
  8. 11. drive or push something forwards.
  9. 13. move or cause to move in a circle round an axis or centre.
  10. 14. concerned with or engaged in commerce.
  11. 16. poisonous
  12. 17. a system of millions or billions of stars
  13. 18. experience or be subjected to smth