Colors and shapes

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Across
  1. 2. the opposite of the color black
  2. 5. first place
  3. 7. when you mix blue and red together
  4. 8. when you mix white and red together
  5. 11. the shape of the sun
  6. 12. the shape of a creeper's face, four sides that are the same length
Down
  1. 1. the color of the sky
  2. 3. a three-sided shape
  3. 4. the color of Santa's outfit
  4. 6. when you mix yellow and red together, also a fruit
  5. 9. the shape of a STOP sign
  6. 10. the color of the grass
  7. 12. you put this shape at the very top of the Christmas tree