Chapter 27 2 Vocab

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Across
  1. 2. regions of the moon that have dark, relatively smooth plains. They are on average, 3 km lower in elevation.
  2. 3. heavily cratered regions of the moon that are mountainous and light in color.
  3. 4. the materials blasted out during impacts from objects collision into the moon and fall back onto the moon surface.
  4. 5. when an impact crater has a long trail of ejecta
  5. 7. valley like structures that may be collapsed lava tubes
  6. 8. when the breaking and heating of surface rocks resulted in a layer of loose, ground up rock on the surface
Down
  1. 1. craters on the moon caused by objects in space that have crashed into the moon
  2. 6. the percentage of incoming sunlight that an object's surface reflects
  3. 9. magma that flows onto the surface from the interior of an astronomical body