Heat > LIQUID CONVECTION APPARATUS
For demonstrating the phenomenon of thermal convection in liquids caused by temperature variation. Consists of a rectangular shaped borosilicate glass tube, 15 x 21cm (w x h), with a funnel shaped opening at the top for filling liquids. When this tube is partially filled with water and heated at one corner after adding a dye, potassium permanganate crystals, saw dust or aluminum powder, the movement of colors or particles illustrates the formation of convection currents. Comes with Teachers Guide.