cambridge Unit 19

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Across
  1. 1. Mars is nearly the same ___ as Earth
  2. 4. The moon's gravity pulls the ocean ____.
  3. 6. The universe is _____ing. It means the same as getting bigger.
  4. 9. _____ has large rings of rocks that float around it.
  5. 10. ____ can live on the moon.
  6. 16. during the high tide the water ____ is high. During the low tide the water ___ is lower.
  7. 17. _____ pulls people towards the Earth. Without it we would fly away.
  8. 18. It is not _____ to breathe oxygen on the moon without a special suit.
  9. 19. _____ is the eighth planet from the sun
  10. 20. An ______ is a scientist who studies stars and planets
  11. 22. _____ is the planet nearest to the Sun
Down
  1. 1. Astronauts explore _____ in a shuttle.
  2. 2. Our _____ is called Earth
  3. 3. ______ is the second planet from the Sun.
  4. 5. ______ is the furthest planet from the sun.
  5. 7. _____ is the seventh planet from the Sun.
  6. 8. ______ ( 1,000,000 )
  7. 11. A person who lives next to another person's home is called their _____
  8. 12. ______ is the largest planet in our solar system
  9. 13. Gravity on the moon is six times ____er than on Earth.
  10. 14. The ______ is expanding.
  11. 15. Our solar ____ has 9 planets and one star.
  12. 21. _____ is a red planet near Earth.