1 lunar and solar eclipses
TRANSCRIPT
1
LunarAnd Solar Eclipses
http://solarsystem.nasa.gov/multimedia/gallery/Earth_Moon.jpg
2
Preliminary TopicsFacts about moon:
• The Moon orbits the Earth
• The Moon doesn’t shine on its own; it reflects sunlight
• The other name of moon is lunar
3
Eclipses
• The Sun and Moon occasionally line up so that we have an eclipse.
• Eclipse means when one object hide another.
• its very dangerous to look at the sun in case of eclipse, why???
because the harmful radiation can damage eye tissues and led to blindness.
4When the Earth’s shadow covers the Moon, we have a lunar eclipse
5Images from Fred Espenakhttp://www.mreclipse.com/LEphoto/LEgallery1/LEgallery1.html
6
Solar Eclipses• When the Moon’s shadow covers part of the
Earth
7
Photo of a Total Eclipse
http://sunearthday.nasa.gov/2006/multimedia/gal_008.php
8
Photos of an partial Eclipse
http://sunearthday.nasa.gov/2006/multimedia/gal_010.php; photos taken by Fred Espenak
9
Tides
• The Moon’s gravity acts on the Earth. – It pulls the most on the part of Earth closest, which
raises the atmosphere and the oceans
10
Tides and the Moon