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Spheres: 2 metal (1 hole)
5000Ω Thermistor
Takes plugs or use crocodile clips
1 phosphorous (3 hole)
Great to make learning times tables fun
Soil Types Kits Pack Of 12 Clearance Spheres: 2 metal (1 hole)A boxed kit of 12 reference samples, for teaching geography, forensics, science and agriculture. The samples have been air dried, sieved through a 6mm mesh and packed in containers, with one of each soil type. The kit can be used for describing and grouping soils on the basis of characteristics, including, appearance, texture and permeability. Labelled with soil type and contained in a Gratnells tray. Each set is supplied with a detailed experimental
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