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Bar and Gauge [0860]

Original price was: $5.60.Current price is: $1.43.

SKU: thdvmdau61789 Category: Science Equipment

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Description

Suitable for KS3 +. For illustrating expansion by heating and contraction by cooling. Comprising a bar of iron mounted on a support rod with wooden handle, and a brass gauge with a cut-out which barely admits the bar lengthways while cold, and a hole which passes the bar endways only while cold. Heating the bar and then comparing it to the gauge provides an excellent visual demonstration of thermal expansion.