Across
- 2. Second man to walk on the moon. Also a member of the first manned mission in 1969.
- 4. The depression at the summit of a volcano or a depression produced by a meteorite impact.
- 6. First man to walk on the moon. "That's one small step for [a] man, one giant leap for mankind."
- 7. When the moon passes between the sun and the earth casting a shadow on earth blocking the sun.
- 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.
- 10. Ancient beds of basaltic lava, originated when asteroids punctured the lunar surface, letting magma bleed out. The dark areas on the moons surface.
- 11. Most of the lunar surface is made up of densely pitted, light-colored areas known as _______.
Down
- 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.
- 3. When the moon passes into Earth's shadow.
- 5. A long channel associated with lunar maria. Looks similar to a valley or a trench.
- 9. Any of a system of bright, elongated streaks, sometimes associated with a crater on the moon.
- 12. The first manned mission to land on the Moon on 20 July 1969.