Material Detail

Why is the Sky Purple?

This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset. Learners observe as a special "sunset egg" and a white light reveal how scattered light emits a blue color and transmitted light emits reddish light. Learners can experiment with different areas of the egg and different light sources to detect interesting variations in color....

Keywords:: Scattering, Moon and Sun, Selective Scattering, Color, NSDL, Biological Science, Physics, Electromagnetic Waves, Heat and Thermodynamics, Wave Properties, Conducting Investigations, Sunset, Wavelengths, Electromagnetic Spectrum, Atmosphere, Chemistry, Earth System Science, Sunlight and Color, Light and Optics, Atmospheric Science, Vision, Space Science, Heat Transfer, Sunrise, Life Science, Physical Science, Geoscience, Mathematics, Rayleigh Scattering, Spectrum, General Science, Earth, Light, Education, Heat and Temperature, Vibration and Waves