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direction changers and connecting pieces
3W + 5% continuously variable
squares and pentagons
4 Wheels-Axles and an Exploring Octoplay activity booklet
Mat size 745mmx490mm
Spark Discharge Early Years direction changers and connecting piecesThe Spark Discharge Apparatus is an extremely visual and audible demonstration of the ionization of air caused by Alpha particles. As an Alpha source is moved along the brass mesh, Alpha particles ionize the air, causing a conductive path to form from the mesh to the conductor below, causing a shower of bright sparks and a crackling sound. Moving the source along the track clearly demonstrates that the sparks follow the source. Requires an alpha
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