Bright minds crossword puzzle!

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Across
  1. 3. A nutrient-rich liquid.
  2. 4. A night-blooming morning glory flower species native to North and South America.
  3. 7. A tough shell to crack.
  4. 8. A precious gemstone.
  5. 9. A Disney princess.
  6. 11. The strongest and rigid part of vertebrate
  7. 12. A crystallized sweetener.
  8. 13. The White House in this state.
  9. 15. The largest hypercarnivore marine mammal.
Down
  1. 1. A part of the immune system.
  2. 2. a staple south-indian food
  3. 5. A type of paint.
  4. 6. This is the whitest and softest alloy.
  5. 10. The final evolutionary state of stars that don't turn into a neutron star or black hole.
  6. 12. A snow sculpture
  7. 14. One of the largest flying bird species.