A Note To Parents: We make every effort for Roxanne's blog to be a SAFE site for children. Whenever possible, activities are in pdf format or link to safe sites for children. Please feel free to use the information in these posts for homeschool studies! All rights reserved by author and nature photographer, Virginia Parker Staat.
Tuesday, April 20, 2010
Our Wacky and Wonderful Sun
The space shuttle Discovery landed today. What a ride it must be to travel in space!
When the shuttle flies, its bottom points towards the sun. The shuttle's heat-resistant tiles keep the spacecraft safer and cool from the sun's radiant heat.
Why? Because the sun is SUPER HOT!
Our sun gives us heat and light. It powers earth's atmosphere to give us winds and rain. We are safe from the sun because of the distance between us and it.
The weather on earth is calm next to weather on the sun. As an example, the sun has hurricanes like earth. But the sun's hurricanes are made of wind and fire rather than wind and rain. The sun's hurricanes are called coronal mass ejections (CMEs), To learn more about CMEs, go to http://sohowww.nascom.nasa.gov/classroom/Explore_print.pdf bn
We have a wacky and wonderful sun! It is a 4.5 billion-year-old star. It is 333,400 times bigger than earth. For more information about the sun, go to http://www.nasa.gov/pdf/62227main_Sun_Lithograph.pdf
How big is the sun in comparison to the earth? Click here:
This photo of the shuttle flying in front of our sun is courtesy NASA.