EXPLORE: Redshift & Blueshift (BrainPop)
Completion requirements
This book will describe redshift & blueshift. Redshift is one of the pieces of evidence used to support the Big Bang theory.
2. Waves
Light travels in waves, and the changes in the wavelength of light waves can tell scientists about how stars and galaxies are moving relative to us. The following interactive lesson will describe the properties and behaviors of light waves.