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- Weights and Measures
Slotted Weight Set W/Hanger-Brass
- 50 gm hanger, 9-10 gm slotted weights, 1-10 gm slotted weight, and 2 - 5gm slotted weights. Height is 4", Dia. 25mm. Comes in a reusable case.
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- Weights and Measures
Slotted Weight Sets
- Brass slotted weights in a carrying rack
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- Weights and Measures
Slotted Weight Sets, Brass Plated
- 10 gm hanger with nine slotted masses, each of 10 gm, total 100 gm. 50 gm hanger, 4 masses each of 50 gm, total 250 gm. 100 gm hanger with four slotted masses, each of 100 gm, total 500 gm. Hanger with nine slotted masses, each of 100 gm, total 1000 gm.
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- Electricity
Solar Powered Car
- Explore "Green Energy" on a small scale! This economical solar car operates on sunlight or a rechargeable AA battery. A four-position switch allows you to choose between running the car on the solar cell or the battery, recharging the battery from the solar cell, or "off." Two binding posts allow the voltage developed by the solar cell to be measured…
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- Solar System Model
Solar System Simulator
- See the solar system in action! The Solar System Simulator is a three-dimensional model of our Sun and the eight planets. The calendar at the base allows the positioning of planets according to the date and shows the relative position between individual planets and the sun.
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- Tuning Forcks
Sound Resonance Kit
- The pair of tuning forks in this kit is designed to demonstrate the resonance of sound and other acoustic phenomena. The kit includes two identical tuning forks, a rubber striker, a piece of clay to varying the frequency, and a plastic dish for sound wave observation. Ages 7+.
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- Chemistry & Labware
Spatula
- Stainless steel, one end flat and the other end spoon form.
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- Chemistry & Labware
Spatula, Chattaway
- Stainless steel, one end flat, other bent up.
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- Physics
Specific Heat Specimen Set
- Set of 4 consisting of Aluminum, Copper, Stainless Steel and Zinc. With brass hook. Each cylinder is 19 mm in diam. (mass 50gm).
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- Physics
Spectrometer, Advanced
- Vernier reading to 30 seconds of arc. The 175 mm diam. scale is fixed. The table and telescope movements are completely independent of each other and read to 30 seconds of arc using double-ended verniers and magnifiers. Both rotations have fine adjustment screws. Coarse adjustments can also be made by the release of the clamping screw. The collimator is mounted…
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- Physics
Spectrometer, Standard
- Reads to 6 minutes of arc (0.1°) 170 mm diameter metal scale graduated 360° x 1°, independently rotatable, with locking screw, vernier attached to the telescope reads to 0.1° (6 minutes of arc). The collimator is mounted on a fixed pillar, with an achromatic objective of 150 mm focal length and 21 mm aperture, and has an adjustable slit 6…
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- Physics
Spectrum Tubes
- Made of glass, 26 cm long overall, narrowed to capillary width for 8.5 to 10 cm of length. Metal wires holding the electrodes are sealed through the ends and welded to metal caps, which have loops for connecting wires. For use with Spectrum Tube Power supply PH61025.
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- Density & Apparatuses
Speed of a Bubble Set
- The set consists of three rugged, sealed, transparent plastic tubes containing colored fluids of three different viscosities. The bubble in each tube rises at a constant speed which depends on the type of fluid, the angle at which the tube is inclined, and to some extent the temperature. Students track the time it takes for an air bubble to move…
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