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Overview: Students will observe and conduct an experiment to see whether differences in salinity (the environment) have an affect on the hatching rate and survival of brine shrimp. Author/Source: UC Museum of Paleontology Grade level: 3-5 Time: One class period for initial set up Approx. 10-15 minutes for daily observations. Concepts: Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details. Environmental changes may affect an organism's ability to survive. (LS4.B, LS4.C, LS4.D) Scientists base their ideas on evidence from the natural world. (P3, P6, P7, NOS8) Scientific ideas may change with new evidence. (NOS3) Teacher background: Nature of Science Adaptation

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