
U.S. Department of Energy @ENERGY
FIREWORKS FACTS: Color combinations are produced in the sky when various metal elements are heated, exciting electrons and releasing excess energy in the form of light. 🎆More about the science of fireworks: https://t.co/XAVizEpszS #4thofJuly https://t.co/Vm2mKJEPmj — PolitiTweet.org