Are you sitting in a quiet space away from distractions?
Do you have all the equipment you need?
Per group: melted salol, dropping pipette, 2 × cold microscope slides (kept in freezer), 2 × warm slides (kept in 45°C water bath/oven prior to use), hand lenses, optional extra – A5 black card.
Risk assessment required - equipment
Adult supervision required
Optional
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