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Sand Activity
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In this activity, learners observe mixtures of sand samples glued to note cards, and consider how sand can differ in size, shape, and color, and where it comes from.
Rainbow in the Room
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This activity generates learner excitement about light through the creation of a room-sized rainbow.
Natural Selection Because of Different Color: Camouflage
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In this activity (p.5-6 of PDF), learners investigate natural selection. Learners discover that natural selection, which takes place over decades, can lead to altered populations within a species.