Week 3 EAS B

123456789
Across
  1. 1. collection of billions of stars held together by gravity
  2. 5. spherical shell of icy objects surrounding the solar system, contains long period comets
  3. 7. a belt of icy objects including short period comets outside Neptune's orbit
  4. 8. nuclear ________ is how stars release energy by light and heat
Down
  1. 2. space rocks found in a belt outside the orbit of Mars
  2. 3. leftovers from start of solar system, minerals, gas, ice , dust
  3. 4. natural satellite that orbits planets
  4. 6. these planets do not have a clear path around sun
  5. 9. sphere of gas held together by gravity