This updated guide, designed for the popular GEMS unit, “solving mysteries with chromatography,” has been rewritten to incorporate current scientific and educational research. The new mystery additions and standards-based science content will lead students through an inquiry-based investigation of key physical science concepts, including solubility, pigments, and the separation of mixtures. The classroom tested teacher’s guide includes a number of activities, step-by-step instructions, assessment suggestions, literature connections, and ideas for further investigation. Grades 4-8. Softcover, 92 pages.
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