The Lenz Law Apparatus allows you to demonstrate electric and magnetic forces. 2 identical-looking plugs are dropped through the copper pipe, but react very differently. As you watch them drop through the viewing window you will see 1 drop quickly and without resistance while the other moves slowly through the tube.
• Comes with a Teacher’s Guide
Includes:
• Copper tube
• Magnet plug
• Metal plug
• End caps

Item AR-105

In Stock

This sturdy carriage has a one-piece, high-impact plastic body. The machined aluminum wheels and axles are mounted on hardened steel cone bearings for minimum friction and long life.
• Comes with a Teacher’s Guide

Item 8211-11

In Stock

This Anemometer is for use in measuring the force and direction of the wind. It has holes for secure attachment. The anemometer is made of sturdy plastic for durability.
• Comes with a Teacher’s Guide

Item 6577-00

In Stock

This is a plastic connecting tube which, when connecting 2 bottles, demonstrates astounding tornado and vortex effects. It makes for a fun and exciting demonstration, and it is perfect for illustrating the vortex to younger children.
• Comes with a Teacher’s Guide
• Assorted colors

Item 6455-55

In Stock

Use this handheld vacuum pump to remove air from tubes or jars for experimental purposes. It works well with the Guinea and Feather Apparatus.
• Comes with a Teacher’s Guide
• Comes with gauge

Item 6076-11

In Stock

This all-metal lamp is a leak-proof alcohol burner. It features a permanent wick. No replacements are needed. The lamp is a useful addition for chemistry classrooms and labs.
• Comes with a Teacher’s Guide
• Stainless steel
• Sufficient for 1.5 hours use
• Tank capacity 100 ml (3.4 oz)

Item 5456-00

In Stock

This handheld crank generator produces up to 6 volts of DC electricity and is a great power supply for many experiments while demonstrating the conversion of mechanical energy to electric energy. Other devices can be easily connected to the lead wires with crocodile clips on the front of the generator. It is housed in a tough transparent plastic so all the components can be easily observed.
• Comes with a Teacher’s Guide
• Spare leads and gears sold separately

Item 4225-00

In Stock

This item consists of spring-loaded metal device and 2 steel balls. It demonstrates that a ball released vertically will hit the floor at the same speed of a ball released horizontally. Use it for demonstrations in physics classes to show students Newton’s Second Law in action!
• Comes with Instructions

Item 3557-00

In Stock

This set consists of 4 glass capillary tubes of different inner diameters rising up from a larger tube reservoir. Use this set-up to demonstrate and help students draw conclusions about capillary action.
• Comes with a Teacher’s Guide
• Comes mounted on a its own stand
• Tubes approx. 150 mm (6″) H

Item 3447-00

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Use the Spectroscope for quantitative examination of the spectral composition of white light and radiant bodies. It is comprised of a metal draw-out tube of 0.75″ (20 mm) Dia. with an adjustable slit at one end. The light passing through this slit falls on the prism elements and breaks up into a spectrum. This can be viewed through an eyepiece at the other end of the tube.
• Comes with a Teacher’s Guide
• Supplied in a velvet-lined wooden box
• Fully drawn out 5″ (130 mm) L

Item 3372-00

In Stock

This apparatus consists of 2 brass rods with insulated handles. One of the rods has a ring and the other has a ball of approximate diameter 1″ (25 mm), attached at the end. The brass ball passes through the ring when both are at room temperature, but when the ball is heated it expands and cannot pass through the ring, demonstrating the expansion and contraction of metals.
• Comes with a Teacher’s Guide

Item 3226-00

In Stock

You can use this meter as a voltmeter and as an ammeter, simply by sliding the scale. It is very convenient for demonstrative applications.
• Comes with a Teacher’s Guide
• 100 uA – 5 A
• 100 mV – 50 V

Item 3232-30

In Stock

This magnet is a model of the lifting magnet used in industry, such as for a scrap metal lifter. It consists of 2 plastic bobbins wound with enameled copper wire and mounted on each arm of a soft iron U-core. Each of the bobbins is fitted with 2 0.16″ (4 mm) socket binding posts.
• Comes with Teacher’s Guide

Item 3165-01

In Stock

Use this device to demonstrate the phenomenon of thermal convection in liquids caused by temperature variation. It consists of a rectangular-shaped borosilicate glass tube, 6″ (150 mm) W x 8.25″ (150 mm) H, with a funnel-shaped opening at the top for filling liquids. When this tube is filled with water and heated at 1 corner after adding a dye, potassium permanganate crystals, saw dust, or aluminum powder, the movement of colors or particles illustrates the formation of convection currents.
• Comes with a Teacher’s Guide and reproducible Student Handout

Item 3205-00

In Stock

This item is also known as a Convection Box or a Ventilation Apparatus. Use it for demonstrating the phenomenon of convection in air and the principle of room ventilation. It consists of an enameled metal box 4″ (100 mm) W x 8″ (200 mm) L x 4″ (100 mm) H, having a sliding glass door and 2 glass chimneys. When the included tea light candle is placed under 1 chimney and a smoldering tape or parchment paper is placed underneath the other chimney, the flow pattern of smoke dramatically illustrates the formation of convection currents. Tape or parchment paper are not supplied.
• Comes with a Teacher’s Guide and reproducible Student Handout
Includes:
• 2 candles

Item 3210-01

In Stock