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Mercury poisoning kit

Item Number:  (470044-094)
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Single student or group, Learn about the effects of mercury poisoning on the brain, Model the flow of toxins and energy through an ecosystem's food chains and food webs, Develop the concept of biological magnification for environmental toxins.

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Patch Cord, Alligator Clips, 12"

Item Number:  (470020-578)
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Slit Screens For Light Source Pack Of 5

Item Number:  (470211-170)
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50 Packs Per Case

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Iron filings, oil free in shake top, 20-50 mesh, 8 oz

Item Number:  (470057-838)
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Pulley - Force Table

Item Number:  (470230-108)
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Pulley - Force Table, Low Friction, Heavy Duty Metal Clamp Attaches Securely To Table Tops From 10 To 24 mm Thick And Pulley Runs Smoothly On Ball Bearing.

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Electric motor 1.5 - 3 V

Item Number:  (470125-156)
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Visual scientifics accessories, car

Item Number:  (470135-580)
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Centripetal Force Kit

Item Number:  (470149-398)
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Squid Guide

Item Number:  (470002-444)
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Sheep Brain/Pig Heart Guide

Item Number:  (470006-608)
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Cat Guide

Item Number:  (470200-062)
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Perch Guide

Item Number:  (470006-610)
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Earthworm Guide

Item Number:  (470006-606)
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MOTOR DC SOLAR MINIATURE 1040RPM SHA

Item Number:  (470135-764)
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Pilobolus crystallinus

Item Number:  (470179-716)
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Crayfish Guide

Item Number:  (470000-248)
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