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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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Texture of igneous rocks (see also under speed of cooling) Matching texture and description  A I 3 min per sample Students are given several samples and must match these with descriptions and modes of formation. Textures of igneous rocks A P 5 minutes per sample Students are given a number of samples with different textures.  Concentrating just on the textures of the samples the students name the texture and how that texture was formed.
Earth Science Activities and Demonstrations