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Mike Tuke’s

A = activity, D = demonstration, E = experiment, Pa = paper exercise,TE = thought experiment. Should be done as I = individual, P = pair, G = group. min = minutes. F = further information.
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Making tubes for permeability and other experiments Requirements for tubes 100ml plastic measuring cylinders or glass tubes Gauze 8cm square Fernox leak sealant or similar Thin wire Instructions The tubes are most easily made by cutting the bottom from 100ml plastic measuring cylinder. Put a bead of sealant all around the outside of the tube 1cm from the bottom.  Press the gauze on and around the bottom of the tube pushing it into the sealant. Tie the wire around to hold the gauze in place. Requirements for support Board 18cm by 2cm thick. For length allow 10cm for every tube Wood 3cm by 1.5cm by 80cm long cut into 2 pieces 25cm long and 2 pieces 15cm long 2 tool clips for each tube The support should be made as shown in diagram and photo.
Earth Science Activities and Demonstrations