Science

US$4.73
Base Indicator Strips Red Litmus Paper. Students can test solutions for base determination. Easy-to-use red litmus paper turns blue for bases. 100 strips per vial.
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US$8.50
Sold individually. An innerpack contains 20 rolls.
Delivery within 2-3 weeks
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US$13.60
The JUMBO sized magnetic marbles come in at 1.33" in diameter and are not a choking hazard. Watch as they spin, attract and repel each other on a table ... a fun way to learn about magnetism! 
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US$2.55
Made from Stainless steel. 6 Inches in length.
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US$226.93
Designed to be used with round bottom boiling flasks. This durable unit has a 2 analog dials for both temperature control and stirrer speed. Both functions can be used simultaneously if desired. Speed: Up to 1400 RPM. Heating Power: 150W. Maximum Unit Temperature: 450 C (842 F). Top ID: 4.13 Inches (105mm). Top OD: 6.50 Inches (165mm). Receiving Depth: 2.36 Inches (60mm). Unit Height: 6.30 Inches (160mm). Unit Weight: 3.50 lbs (1.59kg). Power: 110V, 60Hz.
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US$12.43
For refraction experiments. Made out of Glass sheet, bubble free. Optically polished on all sides. Edges slightly beveled. 75 mm x 50 mm x 18 mm, Length x Width x Height.
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US$8.13
An excellent way to teach and demonstrate static friction on four different textured surfaces. The cube is made from wood, 2 inch (50mm) sides, with four different surfaces and comes with a hook on one side for pulling along an inclined plane or by attaching to a spring scale.
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US$1.27
13x100mm Test Tubes made from borosilicate glass. Screw cap with PTFE liner. Test Tubes are flat bottom.
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US$4.69
Strong plastic construction. These Buzzers are an essential electrical part for use in Physics electrical circuits and Sound experiments and other general lab use.
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US$31.80
This well constructed and attractive electric bell model is mounted on a clear acrylic plate and a finished wooden stand to allow the functional parts to be clearly seen, and operates on 6V DC with an on/off switch, adjustable contact screw, and binding posts for easy connection.
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US$3.46
Lead Metal Electrode: For use with Student Cells or in various other chemical or electricity experiments. Flat type with stamped symbol of the metal.
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US$6.92
Magnesium Metal Electrode: For use with Student Cells or in various other chemical or electricity experiments. Flat type with stamped symbol of the metal.
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US$26.17

Clamp Holder: Pressure die-cast out of light alloy with off set jaws for its strength. The two vee grooves in the body are accurate and give a firm grip on rods, both accept rods upto 18 mm diameter. Black baked enamel finish. Three Finger Condenser Extension Clamp: Strong die-cast construction. Three finger type, rubber covered jaws for protection and grip. Jaws open 3.5", Stem dia. 8mm,. Total Length 260 mm.

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US$16.98
Aluminum, baked hammertone finish. Nickel plated brass clamping screws. It swivels and can be locked at any angle. Accepts rods up to 5/8" / 16 mm diameter.
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US$15.93
Capacity: 2000 mL. Height: 198 mm / 7.80 Inch. Diameter: 142 mm / 5.59 Inch. Graduations From Bottom: 200-2000 mL x 100 mL. Graduations From Top: 0-1800 mL x 100 mL.
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