Our Solar System

Edit Answers
1234567891011121314
Across
  1. 2. / Is the second-most-massive known dwarf planet in the Solar System.
  2. 4. / Craters at the poles contain water ice. Temperatures reach 450°C during the day. At night, the temperature drop to -170°C. There is no atmosphere.
  3. 5. / Icy small Solar System body that, when close enough to the Sun, displays a visible coma and sometimes also a tail.
  4. 7. / Is a region of the Solar System beyond the planets, extending from the orbit of Neptune at 30 to 50 AU from the Sun.
  5. 9. / Radius is 25000 km. Mass is 1 x 1026 kg. Distance from Sun is 30 AU.
  6. 10. / The galaxy that contains our Solar System.
  7. 12. / The planet has live, oxygen and water. It also has ocean, mountain, volcano, etc.
  8. 13. / Composed mainly of rock and various ices. Has a tilt of 97° so rotates on its side.
  9. 14. / 75% hydrogen, 25% helium with a rocky core and liquid hydrogen mantle. The rings are 250000km in diameter but only 1 km thick.
Down
  1. 1. / Made up of 90% hydrogen, 10% helium. It has a core of rocky material of 10 to 15 Earth-masses.
  2. 3. / Hypothetical source of comets that stray into our Solar System. 50,000 AU from the Sun
  3. 6. / A storm that has been raging for over 300 years. As big as 2 Earths.
  4. 8. / Is the visible streak of light from a meteoroid, heated and glowing from entering the Earth's atmosphere.
  5. 10. / Surface temperatures are between 0°C and -100°C. Has the highest mountain in the Solar System.
  6. 11. / Rotates in the opposite direction to other planets in the Solar System. The atmosphere is 95% Carbon Dioxide. It has thick atmosphere.
  7. 14. / The star at the center of the Solar System. It is 4,500 million years old.