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Free science lesson plans, worksheets, activities, experiments, web sites, projects, labs, dissections, worksheets, reources, YouTube videos, extra credit for the middle school (K-8) Life Science classroom.
Free, science, life, biology, worksheet, activty, classify, classification, Linneaus, Aristotle, invertebrate, vertebrate, backbone, chordata, chordate, sponge. porifera, cnidarians, cnidaria, stinging-celled, jellyfish, sea anemone, coral, hydra, echinode
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