The Solar System

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Across
  1. 6. Energy and matter are ___________
  2. 8. The largest planet
  3. 9. 2 nuclei collide to form one larger nucleus
  4. 11. The first element created after the Big Bang
  5. 12. What needs to collect more materials to create planets
Down
  1. 1. How stars are created in Solar Nebula's
  2. 2. A compass would not work on mars because it does not have a ________
  3. 3. The moon is made of _______
  4. 4. Inner planets are ________
  5. 5. Solar Nebula's are held together by ________
  6. 7. The law that states that lots of gravity are redshifted meaning an explosion had to cause them to be moving away from each other
  7. 10. ______ mass is in the center of the Solar Nebula