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Schouten, Peter W.; Sharma, Ashok; Burn, Stewart; Goodman, Nigel; Parisi, Alfio; Downs, Nathan; Lemckert, Charles – Teaching Science, 2013
The emissions of various types of greenhouse gases (GHGs) from natural and industrial sources are undergoing a great deal of scrutiny around the world. The three main GHGs that are of most concern are carbon dioxide (CO[subscript 2]), nitrous oxide (N[subscript 2]O) and methane (CH[subscript 4]). CO[subscript 2], N[subscript 2]O and CH[subscript…
Descriptors: Science Laboratories, Science Instruction, Laboratory Equipment, Scientific Concepts
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Downs, Nathan; Parisi, Alfio – Teaching Science, 2010
A method is described for building a cost effective digital circuit capable of monitoring the solar radiation incident upon a remote solar cell. The circuit is built in two sections, the first, digitises the analogue voltage produced by the solar cell at a remote location and transmits the received signal to the second receiver circuit which…
Descriptors: Radiation, Science Instruction, Science Activities, Computer Uses in Education
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Schouten, Peter; Parisi, Alfio; Downs, Nathan – Teaching Science, 2009
The measurement of solar UV under water is not a simple process. In the underwater environment the difficulty of obtaining useable data is greatly amplified due to the optically complicated and at times unpredictable nature of water itself. The following practical exercise designed for use in the Year 11 and Year 12 Physics classroom aims to…
Descriptors: Optics, Physics, Science Instruction, Secondary School Science