Qualifies for Discounts

Set of 15 Spectroscope Kit w/ Study Guide (15234)
Set of 15 Spectroscope Kit w/ Study Guide (15234)

To study and demonstrate heat absorption and radiation. Consists of two metal concave plates one white and the other painted black with thermometer holders on the back, and in-between is a lamp, heat source. When the lamp is switched on and the temperature is measured of the metal plates, it can be studied which one absorbs heat quicker and more than the other. After the lamp is turned off, we can also study which losses heat quicker. Lamp operates on 12VDC. Base Size 7.75" x 7.75" x 0.5". Metal plates are 3.75" in dia. Total height of unit 5.5". One bulb included, thermometers not included.
To study and demonstrate heat absorption and radiation. Consists of two metal concave plates one white and the other painted black with thermometer holders on the back, and in-between is a lamp, heat source. When the lamp is switched on and the temperature is measured of the metal plates, it can be studied which one absorbs heat quicker and more than the other. After the lamp is turned off, we can also study which losses heat quicker. Lamp operates on 12VDC. Base Size 7.75" x 7.75" x 0.5". Metal plates are 3.75" in dia. Total height of unit 5.5". One bulb included, thermometers not included.

Set of five metal cylinders with hooks: aluminum, copper, iron, lead and zinc, each 15mm in diameter and 100 gm weight. Cylinders vary in length.
Set of five metal cylinders with hooks: aluminum, copper, iron, lead and zinc, each 15mm in diameter and 100 gm weight. Cylinders vary in length.

14 oz. roller that can be used as a vehicle on inclined planes or as a counterweight.
14 oz. roller that can be used as a vehicle on inclined planes or as a counterweight.

A very ecconomical apparatus to demonstrate that light and heavy objects fall at the same rate / accelaration in a vacuum. Apparatus consists of a 36" (910mm) long x 2.25" (55mm) diameter, transparent tube with a stopcock mounted in a rubber stopper on one end, and a solid rubber stopper on the other end. Supplied complete with a 13" long vinyl tubing for connection to a vacuum pump (not supplied), a metal disc and a feather.
A very ecconomical apparatus to demonstrate that light and heavy objects fall at the same rate / accelaration in a vacuum. Apparatus consists of a 36" (910mm) long x 2.25" (55mm) diameter, transparent tube with a stopcock mounted in a rubber stopper on one end, and a solid rubber stopper on the other end. Supplied complete with a 13" long vinyl tubing for connection to a vacuum pump (not supplied), a metal disc and a feather.

Build any type of voltaic cell with this safe, sturdy kit. Functions as a storage cell, coulometer, dry cell, or Daniel cell. Includes: opaque polypropylene 8-oz cell body with low profile, wide base to resist spills; porous cup, instructions, 10 labeled electrodes (2 each, copper, lead, zincs; 1 each, aluminum, carbon, iron, nickel). Screw-on plastic rim has 2 brass electrode holders which adjust to hold round or flat electrodes.
Build any type of voltaic cell with this safe, sturdy kit. Functions as a storage cell, coulometer, dry cell, or Daniel cell. Includes: opaque polypropylene 8-oz cell body with low profile, wide base to resist spills; porous cup, instructions, 10 labeled electrodes (2 each, copper, lead, zincs; 1 each, aluminum, carbon, iron, nickel). Screw-on plastic rim has 2 brass electrode holders which adjust to hold round or flat electrodes.

Open model. Shows all the parts of a motor. Operating voltage 4-6V. Supplied complete with color disc. 120x80x115mm.
Open model. Shows all the parts of a motor. Operating voltage 4-6V. Supplied complete with color disc. 120x80x115mm.

All parts easily visible. Rigid construction. Mounted on wooden board nicely polished. Workable on 3-4 volts AC or DC.
All parts easily visible. Rigid construction. Mounted on wooden board nicely polished. Workable on 3-4 volts AC or DC.

Comprising a primary coil of insulated copper wire wound on a cylinder and fitted with terminals, together with a secondary coil of fine insulated copper wire wound on a cylinder into which the primary coil may be fitted. A soft iron core, for inserting in the primary coil, is included. To demonstrate the concept of induced current and with the soft iron core the electromagnetic effect can also be demonstrated.
Comprising a primary coil of insulated copper wire wound on a cylinder and fitted with terminals, together with a secondary coil of fine insulated copper wire wound on a cylinder into which the primary coil may be fitted. A soft iron core, for inserting in the primary coil, is included. To demonstrate the concept of induced current and with the soft iron core the electromagnetic effect can also be demonstrated.

Includes 12 polypropylene samples. Determine the mass and volume of each sample. The slope of the straight line that results is the density of the material. The attractive wooden holder allows the teacher to see immediately when all of the specimens have been returned!
Includes 12 polypropylene samples. Determine the mass and volume of each sample. The slope of the straight line that results is the density of the material. The attractive wooden holder allows the teacher to see immediately when all of the specimens have been returned!

Includes 12 PVC samples. Determine the mass and volume of each sample. The slope of the straight line that results is the density of the material. The attractive wooden holder allows the teacher to see immediately when all of the specimens have been returned!
Includes 12 PVC samples. Determine the mass and volume of each sample. The slope of the straight line that results is the density of the material. The attractive wooden holder allows the teacher to see immediately when all of the specimens have been returned!

Set of 6. Aluminum, Brass, Copper, Steel, Lead, Zinc. With hooks. Diameter 25mm.
Set of 6. Aluminum, Brass, Copper, Steel, Lead, Zinc. With hooks. Diameter 25mm.

Set of 6. Aluminum, Brass, Copper, Steel, Lead, Zinc. With hooks. Diameter 25mm.
Set of 6. Aluminum, Brass, Copper, Steel, Lead, Zinc. With hooks. Diameter 25mm.

Made of polypropylene and can hold 10 standard 1" x 3" microscope slides back to back. The interior is grooved in a way to hold the slides in an erect position. Jar features domed and shallow thread screw cap.

Test tubes are made of premium grade polystyrene, precision molded with glass like clarity. Sold in packs of 500.

An affordable assortment of some of the most commonly used plastic labware items. Kit consists of 20 items shipped in a plastic storage box including: 1 beaker (100 ml), 1 beaker (250 ml), 1 graduated cylinder (10 ml), 1 graduated cylinder (100 ml), 1 funnel (65 mm top diameter), 1 drop dispenser bottle, 4 reagent bottles, 1 wash bottle, 3 plastic test tubes, 6 pipettes.

Borosil brand pipettes are manufactured from specially selected heavy-wall machine-drawn borosilicate accurate bore glass tubing. They have precision formed jets and bevel ground ends to resist chipping. The graduation marks are in durable white enamel or amber stain, both are resistant to normal laboratory agents and repeated washing. All the pipettes are individually measured and then marked. Accuracy is ensured between any two readings, because of uniformity of bore. The pipettes can be autoclaved and if necessary can be flamed for sterilization.

Graduation Interval: 5ml Borosilicate cylinder with pour spout features single "to contain" scales. Hexagonal base.
Graduation Interval: 5ml Borosilicate cylinder with pour spout features single "to contain" scales. Hexagonal base.

Graduated Interval: 25ml These bottles are made of translucent and unbreakable low density polyethylene. The distinguishing feature that these bottles contain is the built-in delivery tube making it a one-piece wash bottle. These bottles are graduated on the outer surface to reflect an approximate volume of solution filled or dispensed.

These polypropylene bottles are rigid, translucent and have excellent contact clarity. These bottles can be autoclaved filled as well as empty. The polypropylene cap has a built-in seal ring to make these bottles leak proof. 

These polypropylene bottles are rigid, translucent and have excellent contact clarity. These bottles can be autoclaved filled as well when they are empty. The polypropylene cap has a built-in seal ring to make these bottles leak proof. Avaialble in 5 sizes.

• Dual Scale
• Hecto Pascal (hPa)
• Millimeter Mercury (mmHg)
• 4" Dial
• 5 YR Warranty

Dial Barometer for Classroom, Lab, Industrial Use. Large, clear dual-scale barometer in hPa (hecto Pascal) and mm (millimeter mercury) on a 4" dial which is easy to read from a distance. For classroom, lab, or industrial use. Accuracy of ±3 to 4 hPa. Wall mounts. Weight: 2.6 oz.

For classroom, lab, or industrial use. Large, clear 20-100% RH scale on 4" dial. Easily read from a distance. Uses a precise synthetic hair hygrometer with an accuracy of Ò5%. Plastic face meets food industry requirements. Inner dial shows temperature using a bimetal thermometer, with an accuracy of Ò2ßF. Wall mounts
For classroom, lab, or industrial use. Large, clear 20-100 percent RH scale on 4 inch dial. Easily read from a distance. Uses a precise synthetic hair hygrometer with an accuracy of ±5%. Plastic face meets food industry requirements. Inner dial shows temperature using a bimetal thermometer, with an accuracy of ±2 degrees F. Wall mounts

This chart has illustrations and actual specimens for students to consult as they identify unlabeled rock specimens. For grades 6-12. 23 1/2" x 15 1/5".