Convection appears in many systems in the universe. A heated fluid will expand, increasing the volume, and decreasing the density so the heated fluid floats in its surroundings. When cooled the fluid will sink in its surroundings. This movie highlights 2 demonstrations used in science class. Demo #1 is the Chimney Demo (a.k.a the RED SMOKER) while Demo #2 highlights special convection fluid being heated. We find convection in earth's mantle and believe it drives earth's plates. Ocean curr