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Quartz (Rock Crystal), Single Crystal
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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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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 diver set expresses the effects of air pressure and buoyancy.
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Major structures of a flower are shown in full detail on this economical model. Students can clearly see the calyx, corolla, androceium, stamens, and ...
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Formaldehyde-free rats. Available in vacuum packs.
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Study Several Factors That Affect the Density of Water
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Examples of Organisms That Grow in Colonies
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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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One Culture from Each of the Four Major Types
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Uncover Mysterious Microfossil Clues
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Paramecium aurelia is the smallest species of Paramecium we offer. Paramecium aurelia is characterized by cilia, which it uses for locomotion a...
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The Air-Cooled Laboratory Rheostat is the classic lab solution for controlling voltages and currents.
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What can urine tell us?
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