General Products
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HL0200-001
Ball & Ring, Brass, Gravesande's
The classic brass Ball & Ring apparatus to prove and demonstrate the effects of heating a metal.
If the ring is chilled in ice, the ball cannot pass through the ring. If the ball is heated, it cannot pass through the ring. A chain joins the ball to the ring so they cannot become separated.
The IEC item is carefully machined and matched for size so that the experiment works.
GE1756-01
Ball, Clever Catch, Alternative (Renewable) Energy
Class participation lesson
Makes learning fun
Catch the ball --- answer the question under your left thumb
Teachers guide/answers included
Suitable for year levels 7 8 9
