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