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The Sun http://stardate.org/images/gallery/sun5.jpg

The Sun http://stardate.org/images/gallery/sun5.jpg. Round and Round ( www.windows.ucar.edu/.../ seasons_orbit.5x7.jpg). The Sun is the center of our solar system. The Earth’s movement around the Sun is called it’s orbit It takes one year to complete an entire orbit around the Sun.

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The Sun http://stardate.org/images/gallery/sun5.jpg

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  1. The Sunhttp://stardate.org/images/gallery/sun5.jpg

  2. Round and Round(www.windows.ucar.edu/.../ seasons_orbit.5x7.jpg) • The Sun is the center of our solar system. • The Earth’s movement around the Sun is called it’s orbit • It takes one year to complete an entire orbit around the Sun. • During Earth’s orbit we experience changes in climate called “Seasons”.

  3. Super Size Me!(eearthk.com/website/ images/earth/E20.jpg) • The Sun is approximately 1.4 million kilometers (870,000 miles) in diameter. • Meaning that 109 earth’s could fit across its middle. • The Sun’s interior could hold over 1.3 million Earths (Wow!!) • Our sun is a mid size star, there are some stars larger and smaller than it

  4. Hot and Hotter(www.nasa.gov/.../161863main_ hinode_sun_516.jpg) • The outer visible layer called photosphere and has a temperature of 6,000°C (11,000°F). • The inner layers reach temperatures of 15,000,000° C; (27,000,000° F).

  5. What are you made of?(www.adlerplanetarium.org/. ../convection02.jpg)lower left pic (www.space.gc.ca/asc/ img/sts-097_kidstation_pr..) • Outer glare,or glow is called the Corona • The Chromosphere is the layer only observable during eclipses (lower left) • Outer visible layer called Photosphere • Below Photosphere is Convection zone • Below Convection zone is the Radiation zone • Center is called the core

  6. What's My Age Again?(www.cnn.com/.../ images/sun.earth.lrg.jpg) • Our Sun is about middle age for a star of its type, which means it is about 4.6 billion years old. It is estimated that the Sun will be around for about another 5 billion years.

  7. What’s in it for me?(ixhost.eu/avaxhome/ avaxhome/2007-03-02/Sunse…)

  8. What do clocks, shadows, and the Sun Have in common?(www.padillabay.gov/ brant/eximages/QUESTION.jpg)

  9. The SUNDIAL!!(www.londonphoto.me.uk/ inside/sundial.jpg) • ST KATHARINES DOCK DIAL • This is a large equinoctial sundial in the form of a massive, 3.66 meters, stainless steel ring supported by three rigid chain link cables. The dial was designed by Wendy Taylor in 1973 and delineated by Christopher St J Daniels (http://www.sundials.co.uk/~london.htm)

  10. Parts of the Sundial (.gif) http://www.math.nus.edu.sg/aslaksen/projects/sundials/images/sundial_basic

  11. Lets do an Activity ! • Things to think about. • Are Sundials precision instruments for measuring time? Why or Why not? • Are Sundials useful during all types of weather?

  12. Cited Sources • www.wikipedia.com • www.cnn.com/.../ images/sun.earth. • www.nasa.com • www.stardate.org • pixhost.eu/avaxhome/ avaxhome/2007-03-02/Sunse. • www.londonphoto.me.uk/ inside/sundial.

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