Ch 27 & 28 Vocabulary

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Across
  1. 1. When the moon is closest to Earth, the moon is at ____________.
  2. 4. Natural satellites around planets
  3. 5. The name of the first artificial satellite launched into space
  4. 7. The inner portion of an eclipse in which sunlight is completely blocked
  5. 13. A darker area of the moon that is smooth and reflects less light
  6. 15. Occurs when one celestial body passes through the shadow of another
  7. 16. A day in which the sun is as far north or as far south of the equator as possible giving us the longest and shortest daylight hours of the year
  8. 18. A region between the orbits of Mars and Jupiter that contain most asteroids in our solar system
  9. 19. A small body of ice, rock, and cosmic dust that follows highly elliptical orbits around the sun
  10. 20. The planet that is sometimes referred to as Earth's twin which also has the highest surface temperature in the solar system
  11. 23. Planetlike objects that circle stars other than Earth's sun
  12. 25. Any object that orbits the sun, is round because of its own gravity, has not cleared the region around its orbit, and is not a satellite of another planet
  13. 27. Another name for the outer planets because they are large planets that have deep, massive atmospheres made mostly of gas
  14. 28. The largest of the minor bodies in the solar system that are fragments of rock that orbit the sun
  15. 30. A bowl-shaped depression on the surface of the moon
Down
  1. 2. A day in which the hours of daylight and darkness are approximately equal everywhere on Earth
  2. 3. The Red Planet
  3. 4. A very small body of rock or metal that moves throughout the solar system; most have a diameter of less than 1 mm
  4. 6. The varying shapes of the moon, lighted by reflected sunlight
  5. 8. The largest planet in the solar system
  6. 9. The outer part of the shadow of an eclipse in which sunlight is only partially blocked
  7. 10. Another name for the inner planets because they are similar to Earth
  8. 11. Any part of a meteoroid that is left when a meteoroid hits Earth
  9. 12. The planet which has the solar system's strongest winds and is named after the Roman god of the sea because of its water-like color
  10. 14. The bright streak of light that is produced when meteoroids begin to burn up after entering Earth's atmosphere
  11. 16. The least dense planet in the solar system whose distinctive feature are its rings, which are two times the planet's diameter
  12. 17. The only known planet that has the proper combination of water, temperature, and oxygen to support life
  13. 21. A region of the solar system that starts just beyond the orbit of Neptune and contains dwarf planets and other small bodies made mostly of ice
  14. 22. When the moon is farthest from Earth, the moon is at ____________.
  15. 24. The planet whose distinctive feature is that its axis of rotation is almost parallel to the plane of its orbit
  16. 26. A body that orbits a larger body
  17. 29. The planet closest to the sun that has a large daily temperature range due to its slow rotation and absence of a significant atmosphere