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Science

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PMD002 Clear Plastic Magnifier, 3x, 6x
PMD002 Clear Plastic Magnifier, 3x, 6x
US$1.09
Clear plastic magnifier is 110 mm (4.50") in length and features dual lenses of 3x and 6x magnification. 3x lens is 50 mm in diameter and 6x lens is 20mm in diameter.
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MGFL6X Giant Folding Magnifier
MGFL6X Giant Folding Magnifier
US$22.89
This magnifier offers an extra large field of view, hands free use, and folds down to a compact size for storage.  Its 10 cm lens provides 6x magnification.  Ideal for use on a lab table, and for dissecting small specimens like owl pellets. 
Delivery within 2-3 weeks
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TRPBR1 Brass Tripod Magnifier
TRPBR1 Brass Tripod Magnifier
US$18.62
Tripod magnifier, 10X magnification. Brass.
Delivery within 2-3 weeks
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OBMS02 Metal Supports, pk/2
OBMS02 Metal Supports, pk/2
US$6.08
OBMS02 Metal Supports, pk/2 Individual Accessories for Meter Stick Optical Bench Set Item# Description OBLS38 Lens...
Delivery within 2-3 weeks
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HRDKIT3 Chemistry Labware Kit
HRDKIT3 Chemistry Labware Kit
US$99.61
Contents: (2)Dropping Bottle, 30 ml, Barnes. (6)Dropping Pipettes, Plastic. (1)Beaker, Glass, 50 ml. (1)Beaker, Glass, 100 ml. (1)Beaker, Glass, 250 ml. (1)Evaporating Dish, Porcelain,70 mm dia. (6)Stirring Rods, Glass, 8”. (1)Erlenmeyer Flask, Glass, 125 ml. (1)Erlenmeyer Flask, Glass, 250 ml. (6)Test Tubes, Glass, 18 x 150 mm. (1)Cylinder, Plastic (PP), 10 ml. (1)Cylinder, Plastic (PP), 50 ml. (1)Cylinder, Plastic (PP), 100 ml. (1)Forceps, stainless, 5” long. (1)Crucible tongs, steel, 9” long. (1)Funnel, Glass, long stem, 90mm dia. (1)Funnel, Plastic, 75 mm dia. (1)Test Tube Clamp, brass, with finger grips. (1)Wire Gauze, 5” x 5”, with ceramic center. (1)Crucible, Porcelain, 25 ml with lid. (1)Watch Glass, 75 mm dia. (1)Plastic Scoop. (1)Spatula, stainless, 3” long blade with wooden handle. (3)Rubber Stoppers, solid. (3)Rubber Stoppers, one-hole. (3)Rubber Stoppers, two-hole.

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LTDSE1 Stirling Engine
LTDSE1 Stirling Engine
US$167.36
This economical Stirling Engine runs by exploiting the heat flow generated by the small temperature difference between room temperature and a cup of hot water or ice. It is a classic illustration of converting heat energy into mechanical work using a thermodynamic cycle. The engine runs at about 150rpm when used with cup of hot water. Additional information available upon request. Includes activity guide.
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LCV302 Double Convex Glass Lenses, D 38mm, F. L. 50mm
LCV302 Double Convex Glass Lenses, D 38mm, F. L. 50mm
US$4.69
Made from plate glass, with carefully ground and polished optical surfaces, and cleanly ground edges.
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LCV502 Double Convex Glass Lenses, D 50mm, F.L. 50mm
LCV502 Double Convex Glass Lenses, D 50mm, F.L. 50mm
US$7.69
Made from plate glass, with carefully ground and polished optical surfaces, and cleanly ground edges.
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LCV504 Double Convex Glass Lenses, D 50mm, F.L. 100mm
LCV504 Double Convex Glass Lenses, D 50mm, F.L. 100mm
US$5.89
Made from plate glass, with carefully ground and polished optical surfaces, and cleanly ground edges.
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30-1530 Wave Apparatus
30-1530 Wave Apparatus
US$83.93
A simple crank of a handle will generate longitudinal and transverse waves! Economical wave apparatus contains eccentric discs which support a series of metal rods attached to a revolving handle. Your students will generate transverse and longitudinal waves and describe their differentiating characteristics.
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STPS-1 Spectrum Tube Power Supply
STPS-1 Spectrum Tube Power Supply
US$299.39
Provides Safe and Reliable Operation for 10" Spectrum Tubes. The unique design supplies a voltage that prolongs the life of the spectrum tubes. Specially designed sockets eliminate electrical shock hazards. The unit operates at 120V @ 60Hz. Output Voltage 5000V w/o Spectrum Tube; 1000V @ 10mA w/ Spectrum Tube. Operating Temperature 10°C to 50°C
Delivery within 2-3 weeks
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PVV-1000 Variable Volume Semi-Autoclavable Micropipette (100 - 1000 ul)
PVV-1000 Variable Volume Semi-Autoclavable Micropipette (100 - 1000 ul)
US$181.93

These are variable volume micropipette with autoclavable tipcones and built-in tip ejectors. They work on a click stop digital system, are easy to calibrate and maintain, and easy to disassemble for autoclaving. A calibration certificate is provided with each pipette.

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THMPR4 Thermometer Probe (50°F to 550°F)
THMPR4 Thermometer Probe (50°F to 550°F)
US$6.69
These are 5" long stainless steel thermometer probe with different scales. Temperatures are shown on a dial display. Includes protective sleeve with pocket clip.
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DFG300 Transmission Grating 300 Lines per mm
DFG300 Transmission Grating 300 Lines per mm
US$48.64
These quality student transmission gratings are protected by two glass plates, 60mm x 45 mm. Viewing area measures approximately 45mm x 30mm. These transmission gratings are for detailed quantitative spectral analysis.
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DFG525-PK/5 Transmission Grating in Slide Viewers 13,400 Lines per mm - Pkg of 5
DFG525-PK/5 Transmission Grating in Slide Viewers 13,400 Lines per mm - Pkg of 5
US$15.76
These quality student transmission gratings are protected by two glass plates, 60mm x 45 mm. Viewing area measures approximately 45mm x 30mm. These transmission gratings are for detailed quantitative spectral analysis.
Delivery within 2-3 weeks
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