Author: David Purvis, Ph. D.
This manual covers all the basics of the ocean, including salinity; waves, currents, and tides; the ocean floor; the different layers of the ocean; fish, mammals, and other ocean life; and food chains in the ocean. It contains demonstrations and activities that will engage students and is replete with humour that appeals to young learners.
$42.50 Original price was: $42.50.$34.00Current price is: $34.00.
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