1. Friday 2/24/17
Notebook Entry: This picture is not photo shopped! You are actually looking at a full circle rainbow. How could this be possible? What do you think creates rainbows?
captured over Cottesloe Beach near Perth, Australia

2. Why do rainbows usually only appear after rain?

3. Light enters a water droplet, bending as it slows down a bit going from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths—or colors. When it exits the droplet, it makes a rainbow.

4. Energy from the Sun
Nearly all of the energy in earth’s atmosphere comes from the sun.
The energy travels in a wave and is called radiation.
Light, heat, and sound are all forms of radiation.

5. Watch NASA Explore the Electromagnetic Spectrum with the reading.

6. Energy in the Atmosphere