Slide 5:
sun
Let’s review: :
Let’s review: A complete rotation of the
earth is 24 hours or one day
A complete orbit of the earth around the sun is 365 ¼ days making one year.
The earth sits tilted on an imaginary line called an axis.
The tilting of the earth gives us seasons.
The lunar cycle depends on the position of the earth, moon, and sun.
Slide 7:
Credits
http://library.thinkquest.org/29033/begin/earthsunmoon.htm
http://stardate.org/nightsky/moon
http://www.moonconnection.com/moon_phases.phtml
youtube.com
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