The Physics & Mathematics of Sunrise & Sunset
Why is the sky colorful during sunrise and sunset?
Web Resources
Why Does the Sun Rise & Set?
National Geographic - Red Sky at Night: The Science of Sunsets
The Colors of Sunset and Twilight
Activity
The Children's University of Manchester - Sunrise & Sunset Day Length (online interactive)
Sky Science - Why Does the sky change colors?
The Children's University of Manchester - Sunrise & Sunset Day Length (online interactive)
Sky Science - Why Does the sky change colors?
Experiment
Informative Video