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"Brushes"

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Experiment

Item Number:  (470163-952)
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Photoconductivity, Multipurpose power supply. Electrical safety tested. Marked analyzer & polarizer for angle measurement. Photo current is studied as a function of the voltage applied to the photo resistor at a constant irradiance.

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Animals & Their Babies Big Book and Guide

Item Number:  (470048-004)
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Kit, Volcano, Smithsonian

Item Number:  (470004-562)
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Kit, Steel Sphere Density

Item Number:  (470004-842)
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Broken Bones X-Rays

Item Number:  (470039-516)
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Hourglass Timer, 1 Minute

Item Number:  (470092-556)
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Diffraction Grating

Item Number:  (470158-406)
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Diffraction Grating, protected by two glass plates, 60 mm x 45 mm 300lines/mm Viewing area measures approx 0. 45mm x 30mm

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Ballistics Car

Item Number:  (470164-718)
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Ballistics Car with Remote Trigger, demonstrates the independence of vertical and horizontal motions. It consists of a four-wheeled cart carrying a vertical tube with a spring-loaded piston inside. The tube is loaded with a ball and the cart is set in motion

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Hooked Weight, 100g

Item Number:  (470102-764)
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Hooked Weight, 500g

Item Number:  (470012-930)
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Book, Orienteering and Map Games for Teachers

Item Number:  (470102-616)
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Condenser Box

Item Number:  (470219-540)
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Condenser Box, provides differentvalues of Electrolytic capacitors ranging from 1ufd to 4.7ufd, +/- 10% tolerance and, of 63 volts working voltage, Built on 8in x 5in Plastic Box

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Model radius left side

Item Number:  (470221-136)
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Radius Left Side

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Option 1 kit, Nine Petriscope models, Lesson Plan and consumables for 20 students

Item Number:  (470225-586)
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Petriscope Activity

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Human Powered Light Bulb Static Electricity

Item Number:  (470003-518)
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Kit, Fossilworks, Eyewitness

Item Number:  (470101-740)
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