20mm, 7/8" diameter compasses for magnet experiments. Aluminum case with glass top.
A chart and pocket-sized viewer that shows the color spectra of common night lights, identifies each spectrum, and includes a diffraction grating through which you can see them. You can easily survey the night light spectra while riding around after dark, holding Night Spectra Quest up to your eye, with someone else driving. Booklet also includes further information and experiments.
A chart and pocket-sized viewer that shows the color spectra of common night lights, identifies each spectrum, and includes a diffraction grating through which you can see them. You can easily survey the night light spectra while riding around after dark, holding Night Spectra Quest up to your eye, with someone else driving. Booklet also includes further information and experiments.
Battery holders with 12" Lead wires, stripped ends. Sturdy plastic construction.
D, C, AA, and 9V models available with 12" Lead wires with stripped ends. Sturdy plastic construction. batteries not included
Plastic base, with brass screw type receptacle and two terminals.
Plastic base, with brass screw type receptacle and two terminals.
By touching two metal strips simultaneously your body becomes a path for charged molecules to complete a circuit. Result: the ball glows brightly. Works with several people creating the path. When opened, the energy ball reveals a working circuit for insight into the world of computers.
Outside Diameter: 46mm, Height: 321mm, Graduated Interval: 2ml Measuring Cylinders with a hexagonal base. The hexagonal base provides excellent stability to the cylinder, and the tapered spout works really well while pouring any reagents.
Outside Diameter: 46mm, Height: 321mm, Graduated Interval: 2ml Measuring Cylinders with a hexagonal base. The hexagonal base provides excellent stability to the cylinder, and the tapered spout works really well while pouring any reagents.
These long stem funnels have smooth walls, 60 degree one cone angle and external ribs to prevent air lock. Molded in polypropylene, these clear funnels can also be steam autoclaved.
Available in 5 Sizes
55mm - Top Inside Diameter: 50mm, Stem Length: 39mm
65mm - Top Inside Diameter: 61mm, Stem Length: 65mm
75mm - Top Inside Diameter: 74mm, Stem Length: 69mm
100mm - Top Inside Diameter: 93mm, Stem Length: 84mm
150mm - Top Inside Diameter: 148mm, Stem Length: 125mm
Maximum clarity, unsurpassed quality and corrosion resistant. Thickness No. 0. There are approx 180 18mm x 18mm coverslips per ounce.
Maximum clarity, unsurpassed quality and corrosion resistant. Thickness No. 0. There are approx 180 18mm x 18mm coverslips per ounce.
• 7.5" x 3.25" insert sign for SS604M and SA150M Sign Vests
• Printed on 110 lb. card stock
• 8 legends available
Chain accessories for our plastic chain. These s-hooks have a UV protectant added to keep the colors bright and maintain the integrity of the plastic for five years of use. Set of 2. Available in 3 colors.
This 27 inch x 36 inch adult size apron is for efficiency and cleanliness. Reinforced at points of strain (6 mil). Quality tapes at waist and neck.
Sturdy plastic, calibrated in grams and ounces (1000g/2.2 lbs.). Zero adjustment dial for accuracy. 5" x 3" x 3/4".
Pure latex gum tubing. A clear amber color. Flexible, with long life under constant use. 3/32" wall thickness.
These durable test tubes with caps are plastic 16 ml
Prismatic reflectors for full, even light pattern, perfect for professional working conditions. Brighter beam with a 100% brighter Krypton bulb. Toolbox-tough polypropylene construction resists impact, gas, grease, chemicals, water, corrosion. Scratch-resistant, break-resistant lens. Full lifetime warranty. Made in the U.S.A. Switches torture-tested to 100,000 on/off cycles. Resistant to extremes of temperature and humidity. Uses 2 "D" Batteries.
• 100% Nylon micro mesh fabric
• Lightweight and breathable for comfortable wear
• Neck and arm holes offer full range of motion
• Available in Fluorescent Green or Orange
These hi-viz Mesh Vests easily separate students into teams for group activities, making them a great addition to any class. Featuring a 100% nylon micro mesh fabric, these vests are lightweight and breathable. These vests offer a full range of motion.
This fluorescent yellow armband provides high visibility day or night, has sonic wedged edges, and is water resistant. Imprinted with "Crossing Guard" in black.
Equilateral. 45mm side. Has one hole for adding fluids to study refraction and dispersion.
Equilateral. 45mm side. Has one hole for adding fluids to study refraction and dispersion.
Construct & operate a functioning DC motor that demonstrates the uses of the armature, field coil, & commutator. Parts provided include: coil of copper wire, base, field poles, armature core, brushes, & all fasteners. Ages 10 and up. No tools needed for assembly except scissors. Comes complete with 12-page instruction booklet which includes illustrations, detailed assembly instructions, "How a Motor Works". 3-6 volt battery required for operation (not included).
Construct & operate a functioning DC motor that demonstrates the uses of the armature, field coil, & commutator. Parts provided include: coil of copper wire, base, field poles, armature core, brushes, & all fasteners. Ages 10 and up. No tools needed for assembly except scissors. Comes complete with 12-page instruction booklet which includes illustrations, detailed assembly instructions, "How a Motor Works". 3-6 volt battery required for operation (not included).
22 Gauge insulated copper wire. 100 ft. Color: Red
22 Gauge insulated copper wire. 100 ft. Color: Red
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.