ahlam1399
04-03-2015, 10:55 AM
http://i.ytimg.com/vi/w-9gDALvMF4/default.jpg (http://www.youtube.com/watch?v=w-9gDALvMF4&feature=youtube_gdata)
The Earth: Crash Course Astro**my #11 (http://www.youtube.com/watch?v=w-9gDALvMF4&feature=youtube_gdata)
Phil starts the planet-by-planet tour of the solar system right here at home, Earth. -- Table of Contents Earth is a Planet 0:03 Layers of Earth 1:25 The Magnetic Field 5:10 Atmosphere and...
From:CrashCourse (http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q)
Views:34642
http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_half_11x11.gif
2007ratings
Time:10:14More inEducation (http://www.youtube.com/videos?c=27)
أكثر... (http://www.youtube.com/watch?v=w-9gDALvMF4&feature=youtube_gdata)
The Earth: Crash Course Astro**my #11 (http://www.youtube.com/watch?v=w-9gDALvMF4&feature=youtube_gdata)
Phil starts the planet-by-planet tour of the solar system right here at home, Earth. -- Table of Contents Earth is a Planet 0:03 Layers of Earth 1:25 The Magnetic Field 5:10 Atmosphere and...
From:CrashCourse (http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q)
Views:34642
http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_half_11x11.gif
2007ratings
Time:10:14More inEducation (http://www.youtube.com/videos?c=27)
أكثر... (http://www.youtube.com/watch?v=w-9gDALvMF4&feature=youtube_gdata)