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An excellent way to introduce beginners to microscopy and the study of pond water, this lab leads students through the creation of silicon gum “swimming pools” on a plastic slide. These pools enable the protists, daphnia, hydra and planaria to be studied under a small area in humane conditions. Using congo red, students stain food to study ingestion and digestion. Kit comes with live coupons for mixed pond culture and paramecium that lets you decide when to order your live materials. Developed by Gertrude Jensen. Includes materials for 30 students and instructions. Grades 7–10.
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