Science Day crossword puzzle - Prelims

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Across
  1. 5. Term used to describe an object whose shape reduces drag/allows it to move easier through air while moving forward
  2. 7. Fourth state of matter
  3. 12. The massive explosion of a massive dtar
  4. 13. strongest muscle in the human body
  5. 14. Back side of mirrors are usually coated with :
  6. 16. Outermost later of the earth
Down
  1. 1. Usually, a tool with a _______ tip is used to cut glass
  2. 2. Pluto is known as the _____ Planet
  3. 3. Positively charged particles
  4. 4. Saturn's largest moon
  5. 6. Largest natural source of freshwater
  6. 8. Most radioactive element
  7. 9. Element whose symbol is "Cu"
  8. 10. The Earth's ____ affects the tides of the water bodies
  9. 11. Hydrogen engines use water as fuel source in cars.
  10. 15. What can never be destroyed and never be created