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Gr 4-9 This work offers 60 experiments aligned with national science standards "in content and in processing skills." The text, printed on sturdy cardboard pages and arranged in a three-ring binder for easy photocopying, begins with a comprehensive presentation on safety precautions. The entries are arranged under six subject areas: "Earth Science," "Weather," "Animals," "Plants," "Ecology," and "Environmental Science," and include experiments determining the effects of detergents on plant growth...Log In or Sign Up to Read More