Grade 6

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Across
  1. 4. A telescope for collecting radio waves.
  2. 5. The most famous space telescope.
  3. 7. The gases around the Earth.
  4. 9. SKA stands for Square _____ Array.
  5. 11. The imaginary line through the centre of the Earth is called its _____
  6. 14. The spinning of a planet on its own axis is called _____
  7. 15. The time it takes the Earth to spin once on its axis.
Down
  1. 1. The time it takes the Earth to revolve around the Sun once.
  2. 2. SALT stands for _____ African Large Telescope.
  3. 3. An optical telescope has an _____ lens and an eyepiece lens.
  4. 6. The movement of one body in space around another is called _____
  5. 8. The _____ is at the centre of our solar system.
  6. 10. To make things look bigger.
  7. 12. A group of radio telescopes
  8. 13. A telescope that we look through is an ______ telescope.