The Big Bang Theory

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Across
  1. 2. biggest planet
  2. 6. big bang happened 13.7 _______ ago.
  3. 7. a notional boundary around a black hole beyond which no light or other radiation can escape.
  4. 8. third planet from the sun
  5. 9. name of our galaxy
  6. 12. system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
  7. 13. the hottest color of a star
  8. 14. coolest color of a star
Down
  1. 1. the force that attracts a body towards the centre of the earth, or towards any other physical body having mass.
  2. 2. the best teacher ever!
  3. 3. closely compacted in substance
  4. 4. the center point of a black hole
  5. 5. made from gasses and particles spinning fast
  6. 10. girls favorite fast food
  7. 11. most popular drink in 5b