LOS ANGELES - Hundreds of thousands of gallons of flame retardant have been dropped on or near homes in the areas of both the Palisades and Eaton fires still burning in Los Angeles. As containment ...

Salt slurries in petri dishes with methanol are ignited and characteristic colors for various metals are observed. Colors of emission spectra are due to loosely-bound valence electrons being excited ...

Balloons filled with hydrogen and containing metal salts are ignited. When the balloon explodes, the characteristically colored flame for that metal is seen. 1. Fill desired number of balloons with ...