Can you make a rainbow just with sunlight and water? No magic required? With the help of the pegasus weather team, Rainbow Dash and Twilight Sparkle investigate.
Can you make a rainbow just with sunlight and water?
Following Twilight Sparkle's explanation of the scientific method, Diamond Tiara says the sonic rainboom is a scientific phenomenon. Scootaloo insists it is magic. The Ponyville schoolhouse is the scene for an unprecedented intellectual dispute.