Item Number :
(470026-488)
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Quartz (Rock Crystal), Single Crystal
Item Number :
(470102-562)
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This 3-part lab covers selectively permeable cell membranes, hydrophilic interactions, and cell surface area to volume ratio.
Item Number :
(470005-200)
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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.
Item Number :
(470101-098)
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In this kit, ½ wavelengths are measured and used to determine the relationship between wavelength, frequency, and velocity.
Item Number :
(470014-948)
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Safe and Convenient Visual Presentation
Item Number :
(470218-908)
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This diver set expresses the effects of air pressure and buoyancy.
Item Number :
(470111-046)
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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 ...
Item Number :
(470323-112)
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Formaldehyde-free rats. Available in vacuum packs.
Item Number :
(470015-212)
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Study Several Factors That Affect the Density of Water
Item Number :
(470179-932)
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Examples of Organisms That Grow in Colonies
Item Number :
(470007-228)
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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...
Item Number :
(470180-224)
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One Culture from Each of the Four Major Types
Item Number :
(470023-788)
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Uncover Mysterious Microfossil Clues
Item Number :
(470180-150)
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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...
Item Number :
(470110-226)
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The Air-Cooled Laboratory Rheostat is the classic lab solution for controlling voltages and currents.
Item Number :
(470190-700)
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What can urine tell us?