Our Created Moon Vocabulary

2. hot molten undergound rock material that may also contain solid crystals and dissolved gasses
4. a vast collection of about 100 billion stars held together by gravity
5. the National Aeronautics and Space Administration formed by Congress in 1958
8. large, dark, flat lava flows on the moon
9. the surface material hat overlies bedrock on the moon
10. Hebrew wod translated "day"
11. Latin word meaning "to call"
14. U.S. space program that landed 6 teams of astronauts on the moon during 1969-1972
15. chemical analysis to determine the ratios of parent and daughter atoms
16. the limit outside the earth's atmosphere in which a moon with break up
17. theory that universe began 10-15 billion years ago from the gradual expansion

1. a cloud of gas and dust in space
2. measure of the total amount of matter in an ovject
3. long, light-colored streaks radiation outward from craters
4. fundamental force of nature that causes an attraction between all objects
6. a rocky object, much smaller than a planet, that orbits the sun.
7. a rock made up of small angular fragments
11. a circular depression resulting from a collision with a space object
12. traps protected spots near the moon's poles that are in permanent shadows
13. the line separation light from darkness on the moon