Our Universe

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Across
  1. 3. Plantesimals are masses that became...
  2. 4. Greatest mass is in the...
  3. 8. First element created
  4. 9. The outer planets in our Solar System are made mostly our of...
Down
  1. 1. Largest planet in our Solar System
  2. 2. Forms stars
  3. 5. Einsteins equation on energy and matter
  4. 6. Subatomic particles gained this to form first atoms
  5. 7. Created our universe 13.8 billion years ago
  6. 8. Most abundant elements in the universe