In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.