School Purchase Orders
We accept school purchase orders. Please fax in your PO# to 970-484-1198
School Purchase Order Numbers require a fax copy of original P.O. to be sent to our fax number: if you are paying with a credit card, then continue to place the order online.
MSDS sheets can be found on our home page by clicking on the MSDS link.
|
 |
|
LODESTONE STIRRUP
Lodestone Stirrup A useful support for polarity demontration!
This is a brass stirrup designed to hold a lodestone, bar magent or friction rod horisontally so that it can spin freely when suspended from a string. Used to determine magnetic polarity.
(2" x 2 = 1/2 " x 1"; 016lb). |
|
Expansion Apparatus & Supplies
Determine the coefficient of linear expansion of metals! A clear and visual demonstration. Consists of a cast iron base with rollers. A metal tube is placed on rollers and the cast-metal end support, and steam is passed through the tube. As the tube expands, a dial indicates rotation in degrees. Linear value is computed by determining the length of expansion. Instructions are provided. (4' x 8" x 5"; 1.5Ibs). |
|
LINEAR EXPANSION APP. MICROMET
Linear Expansion Apparatus
Makes studying the expansion of metals simple and instantly visible to students! A metal rod is inserted into the steam chamber and steam is applied. The dial indicator mounted on one end immediately registers expansion of the rod. The heat jacket has three tubes for water intake, water outlet, and a thermometer. The unit includes four metal rods 6mm x 60cm of aluminum, steel,
copper, and brass. The unit measures 8 cm x 10 cm x 70cm. Instructions included. (34-1/2" x 4-1/2" x 3-1/2"; 5lbs). |
|
LINEAR EXPANSION W/DIAL INDIC.
Linear Expansion Apparatus - Micrometer Screw Form
A different way to determine the coefficient of expansion of metals! The rod to be tested is placed inside a tube that has both an inlet and outlet for steam. Compare the expanded length of the rod to the temperature difference before and after the rod expands by using a thermometer. The extent of the rod's expansion is measured by a micrometer. The binding post allows you to create an electrical circuit to signal when the rod expansion reaches the |
|
STEAM GENERATOR
Steam Generator
A useful accessory for many experiments involving thermal energy such as the Linear Expansion Apparatus! Constructed of heavy gauge aluminum to prevent corrosion and collapsing under a vacuum. Consists of a boiler, sample cup, tripod and two rubber stoppers with and without hole. The boiler is 100mm diameter x 170mm height, the stand measures 240mm in height. Requires a bunson burner or hot plate. (5" x 11-1/2" x 6"; .75Ib). |
|
Wind Turbine
This exciting kit allows students to build and test a fully-functional wind turbine. The comprehensive guide was developed by the Kidwind Project and contains in-depth information about history, turbine design, and wind energy. Students use a multimeter (included) to monitor how much power their wind turbine produces. |
|
Spot Plates
A piece of equipment that you will find multiple uses for! Made of polystyrene and contains twelve 5.7mm depressions. |
|
SIMPLIFIED STIRLING ENGINE
Simplified Stirling Engine
A demonstration of one of the first 19th century attempts to produce an environmentally sound, economic, and efficient power source. The heat from a small candle sends this Stirling Engine model into oscillation almost immediately. Easy to construct, this unit very visibly demonstrates the Stirling Engine principle. A test tube acts as the cylinder and four marbles work as a transfer piston. As air is heated on one end of the transfer cylinder, it causes the air to expand and move into the cooler end of the cylinder. Here the air cools and contracts; causing the cylinder to lower, and the cycle begins again. Instructions included. (11" x 2" x 5-1/2"; .5lb). |
|
STIRLING ENGINE
Stirling Engine |
|
Styrofoam Balls
Great for making molecular models! |
|
Ball and Ring
A great introduction to expansion and contraction! This unit demonstrates the expansion of metal when heated and its contraction when cooled. When either the ball or ring is heated, the ball will not pass through the ring, but when cooled the ball passes through the ring freely. The ball and ring are mounted to insulated wooden handles to protect hands from the heat. |
|
TYNDALL'S HEATING APPARATUS
Tyndall's Heating Apparatus
Simply and effectively illustrates thermal conductivity!
The unit consists of four metal balls: steel, aluminum,
copper and brass. The balls are heated and dropped
onto a suspended wax sheet. By watching the balls
melt through the wax at different rates, a good idea of
the heat capacity of various metals can be obtained.
Instructions provided.(16" x16" x7"; .5Ib). |
|
Water Trap
An essential accessory for steam generators! A curved inner tube blocks drops of condensed steam from passing through. |
|
CALORIMETER OPEN FLAME CERAMIC
Calorimeter
This Calorimeter is used to
measure the potential heat
capabilities of various solid or
liquid fuels. Open flame style
with insulated ceramic outer
shell. An inner walled chimney
directs the heat upward around
a test tube of water from which
readings are taken. |
|
CALORIMETER DOUBLE WALL
Calorimeter - Double Wall
A basic yet inexpensive necessity for your experiment! Consists of an inner vessel (100ml) and an outer vessel (300ml) with a molded cover, rubber stopper, stirrer, and fiber washer to support and insulate the inner vessel. (4" x 4" x 7"; .34Ib). |
|
ELECTRIC CALORIMETER
Calorimeter - Electric
For determining the
electrical equivalent of
heat. The cover contains
a mounted heating coil
of about 1.5 ohms resistance
with standard binding posts
for electrical connections.
When connected to a 6-volt
battery, this coil will cause
a temperature rise of about
5 degrees centigrade in 10
minutes. The supporting posts
and coil are coated to prevent
electrolysis. Provided with an
insulated handle, stirrer, and a
single-hole rubber stopper.
(4" x 4" x 7"; .34Ib). |
|
COMPOUND BAR
Compound Bar
A dramatic demonstration of the thermostat principle! Consists of a bimetal strip mounted in a wooden handle. Because of the unequal expansion of the two different metals, the bar will bend when heated which illustrates the operation of a thermostat. Instructions provided. (10" x 3/4" x 3/4"; .2Ib). |
|
Lids
Lids Only for Crucibles - High Form |
|
|
|
