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Downs, Nathan; Larsen, Kim; Parisi, Alfio; Schouten, Peter; Brennan, Chris – Teaching Science, 2012
A practical exercise for developing a simple cost-effective solar ultraviolet radiation dosimeter is presented for use by middle school science students. Specifically, this exercise investigates a series of experiments utilising the historical blue print reaction, combining ammonium iron citrate and potassium hexacyanoferrate to develop an…
Descriptors: Chemistry, Foreign Countries, Science Curriculum, Investigations
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Cross, R. T.; Pitekethly, A. – International Journal of Science Education, 1988
Reports on an attempt to bring about conceptual change in children's concept of speed by the teaching of the science of speed emphasizing an integrated hands-on experience. Reports that it may be possible to modify naive conceptions by teaching that targets particular concepts. (Author/YP)
Descriptors: Cognitive Processes, Concept Formation, Elementary School Science, Foreign Countries