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Pearson 6th Earth Science terms and defintions

Pearson 6th Earth Science terms and defintions

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sun, moon, earth Presentation Transcript

  • 1. Ch. 15- NTW Sun-Moon-Earth System
  • 2. 1. __________- study of moon, stars, and other objects in space astronomy
  • 3. 2. _____- imaginary vertical line around which an object spins axis
  • 4. 3. _________- the circling of one object around another (1 revolution= 1 ____) revolution year
  • 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
  • 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
  • 9.
    • 7. _________- when an orbiting object is exactly mid-orbit; sideways to the Sun
    • Spring (_______)- ____________
    • Fall (_________)- _____________
    equinox vernal March 20, 21 autumnal September 22, 23
  • 10.  
  • 11.  
  • 12. 8. ______- push or pull force
  • 13. 9. _________________________- Newton’s law that says objects attract all others toward each other Law of universal gravitation
  • 14.  
  • 15. 10. ______- the amount of matter in an object 11. _______- the measure of the pull of gravity on an object mass weight
  • 16. 12. _______- matter stays at ____ or continues in ______ unless acted upon by an _______________ inertia rest motion outside influence
  • 17. 13. the moon
    • Has ___ ______ of Earth
    • B. Has __ _________
    • C. T emperatures
    • v ary from 115 º C
    • to -162 º C
    • D. O ne rotation takes __ ________ __
    • E. One revolution takes _________
    1/6 gravity no atmosphere 27.3 days 27.3 days
  • 18.  
  • 19. 14.
  • 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
  • 21.  
  • 22.  
  • 23. G. __________- sunlight reflected off the Earth and back to the moon Earthshine
  • 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
  • 25.  
  • 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
  • 27.  
  • 28. 19. The lunar surface
    • _____- dark, flat areas once thought to be seas; Latin word for “sea”
    • _______- bowl-shaped depressions, probably made by meteor impact
    • ____- streaks made from surface materials
    • __________- chunks of rock that have no particular orbit
    maria craters rays meteoroids
  • 29. The End