Greek Roots 4/6

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Across
  1. 3. – a person who travels in space
  2. 5. – related to airplanes and space travel
  3. 7. – needing air or oxygen (like __________ exercise)
  4. 8. – shaped to move easily through air
  5. 12. – to use something again in a cycle
  6. 13. – all living things on Earth
Down
  1. 1. – the study of stars, planets, and space
  2. 2. – something that repeats in a circle or pattern
  3. 4. – a small rocky object orbiting the sun
  4. 6. – to add air to something (like soil or water)
  5. 8. – the layer of air around Earth
  6. 9. – a large spinning storm
  7. 10. – a vehicle with two wheels
  8. 11. – half of a sphere (like half the Earth)
  9. 14. – a perfectly round 3D shape (like a ball)