Convection in Air Apparatus Science Charts Two pith balls suspended on

Two pith balls suspended on unspun silk string to test for charged objects

With this many Orbeez

4 x Medium Safety Pins

Clear plastic tube allows students to see how the scale works and to easily read mass in either grams or newtons

Dependable Rich Resource for Classroom or home

Convection in Air Apparatus Science Charts Two pith balls suspended onAn ideal apparatus for studying convection currents in the Air. Size: 23cm x 10cm x 10cm. This metal box has a glass front and two plastic chimneys. A candle is placed under one of the chimneys causing the convection currents. A piece of touch paper, producing smoke, is held at the mouth of the other chimney making the convection current dramatically visible. Premium Quality: Convection in Air Apparatus is made of high grade construction all the way