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This simple demonstration of the relationship between adaptations and natural selection gets students away from their desks.
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How are diseases transmitted?
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Hands on Identification of Elements
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Matter has mass and takes up space. With this exciting kit, students explore the relationship of mass and volume using a spring scale and hook weights...
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Groundwater Flowmeister Kit, Each
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In this kit, ½ wavelengths are measured and used to determine the relationship between wavelength, frequency, and velocity.
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Safe and Convenient Visual Presentation
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This 3-part lab covers selectively permeable cell membranes, hydrophilic interactions, and cell surface area to volume ratio.
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Insert a sugar solution into the 16" clear tube, lower the membrane end into the jar of water, and watch the water level rise.
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Study Several Factors That Affect the Density of Water
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In this activity, designed by Rick Crosslin, students separate microfossils from an Ordovician-age dry clay soil sample and then observe them using ha...
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Uncover Mysterious Microfossil Clues
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Tackling Science Kit: Air Takes Up Space!
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Jump start lessons in electromagnetism.
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This inexpensive model, developed by Tim Ernest, lets you create longitudinal/compression waves by simply pushing a Slinky® along a track.
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Tackling Science: Hooking your Kids on Science
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