Provides clear explanations of the science behind the experiments and a handy list of basic materials and equipment.... If you dona#39;t have any firm, clear plastic, the joined mirrors can be placed on a piece of paper on the desk top. ... The string must always be kept taut to allow this to work. ... BLM 10 A special habitat Students may need several opportunities to observe their chosen habitats. Once they have drawn their diagrams, students could come together as a class to compare the plants and creatures of the differentanbsp;...
|Publisher||:||Blake Education - 2002-01-01|