Astronomy Part 1 Review

Edit Answers
123456789101112131415161718
Across
  1. 1. This was once a planet but is now classified as a dwarf planet.
  2. 3. These are the fundamental building blocks of galaxies.
  3. 6. This planet is an ice giant and is the furthest planet from the Sun in our solar system.
  4. 7. This is the red planet and has the tallest mountains in the solar system.
  5. 10. This object is tidally locked to Earth and affects Earth's tides.
  6. 12. This is the second-most studied solar system. It has seven planets.
  7. 14. Astronomy means ______. (no spaces)
  8. 15. This person was able to measure the circumference of the Earth in 240 BC.
  9. 16. This is the fastest planet and is the closest to the Sun.
  10. 17. This planet is known as the king of all gods and is a gas giant.
  11. 18. Astronomy is the science of the _____.
Down
  1. 2. This planet is known for its blue hue and rotates on its side.
  2. 4. An insulating atmosphere, liquid water, and a magnetic field are required of a planet to do this. (no spaces)
  3. 5. This is a celestial body large enough to be made round by its orbit around the sun and has cleared away debris from its orbit.
  4. 8. This is the gravitationally bound system of the Sun and the objects that orbit it. (no spaces)
  5. 9. This planet is known as the morning star and is the hottest planet.
  6. 11. This is a huge collection of dust, gas, and billions of solar systems held together by gravity.
  7. 13. This planet is known as the Father of Jupiter and is known for its icy rings.