sun, moon, earth

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Pearson 6th Earth Science terms and defintions

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sun, moon, earth

  1. 1. Ch. 15- NTW Sun-Moon-Earth System
  2. 2. 1. __________- study of moon, stars, and other objects in space astronomy
  3. 3. 2. _____- imaginary vertical line around which an object spins axis
  4. 4. 3. _________- the circling of one object around another (1 revolution= 1 ____) revolution year
  5. 5. 4. ________- the turning motion of an object on its axis rotation
  6. 7. 5. _____- the actual path followed by a satellite; ______- oval, the orbits of our solar system’s planets orbit ellipse
  7. 8. 6. ________-- time when one pole is pointing directly at the Sun A. summer- __________; longest amount of daylight in the Northern Hemisphere; _____ Pole points towards the sun B. winter- ________________; shortest amount of daylight in the Northern Hemisphere; _____ Pole points toward the sun solstice June 21, 22 North December 21, 22 South
  8. 9. <ul><li>7. _________- when an orbiting object is exactly mid-orbit; sideways to the Sun </li></ul><ul><li>Spring (_______)- ____________ </li></ul><ul><li>Fall (_________)- _____________ </li></ul>equinox vernal March 20, 21 autumnal September 22, 23
  9. 12. 8. ______- push or pull force
  10. 13. 9. _________________________- Newton’s law that says objects attract all others toward each other Law of universal gravitation
  11. 15. 10. ______- the amount of matter in an object 11. _______- the measure of the pull of gravity on an object mass weight
  12. 16. 12. _______- matter stays at ____ or continues in ______ unless acted upon by an _______________ inertia rest motion outside influence
  13. 17. 13. the moon <ul><li>Has ___ ______ of Earth </li></ul><ul><li>B. Has __ _________ </li></ul><ul><li>C. T emperatures </li></ul><ul><li>v ary from 115 º C </li></ul><ul><li> to -162 º C </li></ul><ul><li>D. O ne rotation takes __ ________ __ </li></ul><ul><li>E. One revolution takes _________ </li></ul>1/6 gravity no atmosphere 27.3 days 27.3 days
  14. 19. 14.
  15. 20. A. ________- no lighted area visible from Earth B. ______- the visible portion of the moon is increasing waxing C. _______- the visible portion of the moon is decreasing waning D. ________- phase between new moon and first or last quarter E. _______- ¾ phase between full moon and first or last quarter gibbous crescent new moon F. __________-the entire lighted half of the moon is visible from Earth full moon
  16. 23. G. __________- sunlight reflected off the Earth and back to the moon Earthshine
  17. 24. 15. _____________- when the moon moves directly between the Sun and Earth and casts its shadow on part of Earth; only occurs during a ____ _____ solar eclipse new moon
  18. 26. 16. _____________- when the Earth casts its shadow on the moon; occurs only during a ____ ____ 17. _____- total shadow during a full moon 18. ________- partial shadow during an eclipse lunar eclipse full moon umbra penumbra
  19. 28. 19. The lunar surface <ul><li>_____- dark, flat areas once thought to be seas; Latin word for “sea” </li></ul><ul><li>_______- bowl-shaped depressions, probably made by meteor impact </li></ul><ul><li>____- streaks made from surface materials </li></ul><ul><li>__________- chunks of rock that have no particular orbit </li></ul>maria craters rays meteoroids
  20. 29. The End

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