EARTH

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EARTHS ROTATION AND REVOLUTION
http//www.f-lohmueller.de/pov_tut/animate/im/plan
et_01ani.gif
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EARTHS SEASONS
Sunlight on Earth The diagram shows how Earths
tilted axis affects the strength of sunlight in
different places.
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EARTHS SEASONS
Seasons The diagram shows how Earth moves during
the year.
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EARTHS SEASONS
WINTER
SUMMER
http//www.cyberphysics.co.uk/graphics/animations/
Flash/LengthofDay.swf
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EARTHS SEASONS
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EARTHS SEASONS
Solstices and Equinoxes The diagrams show the
apparent path of the sun at the solstices and
equinoxes in the Northern Hemisphere. What is the
suns path at the equinoxes and the December
solstice for the Southern Hemisphere?
Seasons Interactive Display
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EARTHS SEASONS
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MOONS PHASES
The Moons Motion
http//highered.mcgraw-hill.com/olcweb/cgi/pluginp
op.cgi?itswf800600/sites/dl/free/007299181x
/78778/Lunar_Nav.swfLunar20Phases20Interactive

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MOONS PHASES
Moon Phases As the moon orbits Earth, its sunlit
side is seen from different angles.
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MOONS PHASES
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SOLAR ECLIPSES
Solar Eclipse The diagram shows the moons
penumbra and umbra during an eclipse.
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LUNAR ECLIPSES
Lunar Eclipse As the moon moves through Earths
shadow, total and partial eclipses occur.
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Tides
Tide Cycle Tides are caused mainly by differences
in how much gravity from the moon and the sun
pulls on different parts of Earth.