From NASA's Quest's Learning Technologies Channel (at NASA Ames) and the Stanford Solar Center, learn more about the sun from this impressive archive of video clips and materials from past webcasts.
Daytime Astronomy for Elementary and Middle School Students
The over-arching question addressed by these units is "Why do daylight hours vary in length where we live?" All activities have been arranged for convenience into three interchangeable units.
The fastest coronal mass ejection was recorded on August 4, 1972 and traveled from the sun to earth in 14.6 hours - a speed of nearly 10 million kilometers per hour!