Earth and Space Crossword: ES2

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Across
  1. 2. A historical model of our solar system that puts the Earth at the centre of the universe.
  2. 4. A change in the moons appearance from Earth
  3. 5. Earth’s atmosphere is made up mainly of nitrogen and _______.
  4. 8. What is it called when the Moon gets in the way of the Sun’s light and casts its shadow on Earth.
  5. 9. The 4th planet from the sun
  6. 11. The largest planet in our solar system.
  7. 14. Earth's 24 hour rotation on its axis.
  8. 16. The heliocentric model of the solar system was created by? (Last name only)
  9. 17. Earth is divided into these halves.
  10. 18. It takes the moon approx one-month to complete an orbit of Earth, this is called the _____ cycle.
Down
  1. 1. 365 day orbit.
  2. 3. The imaginary line around the middle of the Earth.
  3. 6. The first person to view and study space through a telescope.
  4. 7. If the moon is 'waning', is it getting bigger or smaller?
  5. 8. Earth's rotation around the sun on its titled axis causes different weather at different times of the year called _______.
  6. 9. The planet which is closest to the sun
  7. 10. A star. Produces all heat and light for our solar system.
  8. 12. Pluto is the 9th planet of our solar system.
  9. 13. Earth rotates on its ____
  10. 15. Planets further away from the sun consist mostly of gases and liquids are called _____ planets.