Science Crossword Puzzle

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Across
  1. 3. The unit for Resistance
  2. 5. Symbol for "I"
  3. 8. Known as the "Red Planet"
  4. 9. Animal that eats other animals
  5. 10. system The sun and all objects that travel around it
  6. 11. No longer considered a planet
Down
  1. 1. matter that emits a huge amount of energy
  2. 2. Center of our solar system
  3. 4. Animal that feeds of the remains of other organisms
  4. 6. Closest planet to the sun
  5. 7. The force that keeps everything from floating away
  6. 10. A state of matter that is tightly packed