Chapter 22.3 Earth's Moon

123456789101112
Across
  1. 2. Second man to walk on the moon. Also a member of the first manned mission in 1969.
  2. 4. The depression at the summit of a volcano or a depression produced by a meteorite impact.
  3. 6. First man to walk on the moon. "That's one small step for [a] man, one giant leap for mankind."
  4. 7. When the moon passes between the sun and the earth casting a shadow on earth blocking the sun.
  5. 8. The most widely accepted model for the origin of the moon is that when the solar system was forming, a body the size of Mars impacted Earth. The resulting debris was ejected into space, began orbiting around Earth, and eventually united to form the moon.
  6. 10. Ancient beds of basaltic lava, originated when asteroids punctured the lunar surface, letting magma bleed out. The dark areas on the moons surface.
  7. 11. Most of the lunar surface is made up of densely pitted, light-colored areas known as _______.
Down
  1. 1. Thin, gray layer on the surface of the moon, consisting of loosely compacted, fragmented material believed to have been formed by repeated impacts of meteorites.
  2. 3. When the moon passes into Earth's shadow.
  3. 5. A long channel associated with lunar maria. Looks similar to a valley or a trench.
  4. 9. Any of a system of bright, elongated streaks, sometimes associated with a crater on the moon.
  5. 12. The first manned mission to land on the Moon on 20 July 1969.