Satellites and Space

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Across
  1. 1. the force of attraction between any two objects
  2. 4. a huge ball of gas that gives out heat and light energy
  3. 6. he discovered that there were moons orbiting jupiter
  4. 8. the telescope that orbits Earth and take photos of the galaxy
  5. 13. a large object orbiting the sun
  6. 14. a man made satellite that orbits a planet and takes photo
  7. 16. the man who found about gravity after an apple fell on his head
  8. 18. suggested that the planet move in an elliptical orbit
  9. 19. the force of attraction between any two object
  10. 20. a large object orbiting the sun
Down
  1. 2. he suggested that the earth did not move, and the sun, moon and planets were fixed to solid transparent spheres that rotated around the Earth.
  2. 3. an orbit where the satellite stays at the same speed as the Earth and stays at the exact point on the earth.
  3. 5. the amount of matter something is made of
  4. 7. the unit of force
  5. 9. below 2000 km. We can get to space easily to perform space tasks and missions. the ISS is in a LEO orbit.
  6. 10. an orbit where the satellite passes over the north and south poles
  7. 11. made the theory that the Earth moved around the sun
  8. 12. a celestial body orbiting Earth or another planet.
  9. 15. a space probe that lands on a planet or moon
  10. 17. the oval shape that a planet's orbit around the sun