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Pack of 50 books
1 phosphorous (3 hole)
Takes plugs or use crocodile clips
and encouraging childhood development
5000Ω Thermistor
Soil Types Kits Pack Of 12 Clearance Pack of 50 booksA 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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