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Details Title: Our Moon Description: Facts about the moon Total Flash Cards: 11 Created: 01/06/2007 15:42:34	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term What % of the light that hits the moon is reflected? Definition 10% Term Terminator Definition The sunrise/sunset line. Term Rays Definition -Streaks found on the moon. -they radiate from craters -consist of pulverized rock blasted from the moon's surface durring the formation of the crater -brightness may help determine age of crater Term What are the two kinds of landscape that dominate the surface of the moon? Definition Maria and Highlands Term Seas or Maria (singular Mare) Definition -dark lava plains w/ few craters -seem to be caused early in the moon's life by large impacts causing lava flows Term Circular Maria Definition maria surrounded by rims or ring anticlines beyond which lie the plains Term Mare Ridges or Wrinkle Ridges Definition -rise above surface of the moon -found only on maria -probably caused by compression -formed in central part of maria durring movement or cooling and contraction of the mon's surface Term Rills Definition -valley like depressions of the moon's surface w/ steep sides, flat bottoms, and varying widths -thought 2 b features bounded by faults and formed by sibsidence of the surface -formed by tension Term Chain Craters Definition -small pits in the earth's surface, aligned in chains -found in maria -resulted from violent eruptions of gass which threw out dust & fragments of surface material or the drainage of surface material into voids created by faults Term What crater on our moon is the largest? Definition Copernicus Term The moon has ____ the gravity of the earth. Definition 1/6