Burkholder's Physical Science Alex Fritsch

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Across
  1. 4. a group of stars that have shapes
  2. 6. a cloud of dust and gas
  3. 8. small piecies of debrie that chipped off asteroids or comets
  4. 9. a hypothesis that is supported by observation and experimentation
Down
  1. 1. this many people have stood on the moon
  2. 2. a huge assembly of stars, interstellar gas, and dust
  3. 3. small rocky bodies that orbit the sun
  4. 5. when the earth is shaded by the moon
  5. 7. a meteoroid that reaches Earth's surface
  6. 10. stars are cooler than blue stars