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.
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MANOMETER,LECTURE TABLE
Large enough to demonstrate pressure of gas and liquid, as well as liquid oscillation to a large class! This manometer consists of a glass U-tube, open at one end and fastened to a 15 x 58.5 cm hardwood backboard held upright by a metal support base, with a meter scale mounted between the arms of the tubes for easy-to-read measurements. The large size makes this Manometer easily viewed in a classroom. Instructions included. Overall length 109cm, length of glass 100cm. |
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MANOMETER VACUUM & PRESSURE GAUGE
Vacuum and Pressure Gauge
Manometer Let displacement illustrate the effects of vacuum and pressure for you! This unit is used to measure vacuum and pressure by means of displacement. A U-shaped manometer tube, with arms one meter long is mounted on a wooden support with a cast iron base. A liquid is then placed inside the tube to act as an indicator when pressure or a vacuum is introduced. Oil can be substituted for mercury as the liquid to be displaced.
The glass tube is open on both ends. Instructions provided. (Weight & Dimensions). |
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MANOMETER COMPLETE 25X50CM
Complete - Manometer
Similar to item #7-1299, but its two glass arms have unequal lengths, 25cm and 50cm. The longer arm has a funnel at its top, and the shorter arm has a connector for tubing. The apparatus is mounted on wood base with iron support stand for stability. Instructions included. (25" x 8" x 8"; 3Ibs). |
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OVERFLOW CAN ALUMINUM
Overflow Can
A useful lab tool, excellent for displacement experiments and density measurements! The overflow can is made of a seamless aluminum, and has a pour spout. (5" x 5" x 5"; .31lb). |
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CATCH BUCKET WITH HANDLE
Catch Bucket
Seamless aluminum bucket with handle, used in displacement experiments. The capacity is 300 ml. Designed to catch the overflow for the #1502 overflow can. ( 3-1/2" x3-1/2" x 3-1/2"; .25lb). |
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OVERFLOW CAN W/CATCH BUCKET
Overflow Can & Catch Bucket Set
Get both of these displacement necessities in one convenient set! (9" x 5" x 5"; .6Ib). |
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ARCHIMEDES PRINCIPLE B & C
Archimedes' Principle Bucket and Cylinder
This all-metal unit demonstrates the principles of buoyancy and displacement! The cylinder fits into the cup exactly. The whole unit can be hung from a spring scale and weighed. This unit can then be lowered into a container of water and the reduction weight noted. Experiments prove that the weight loss equals the weight of the water displaced. Instructions included. (4-1/2" x 1-1/2" x 1-1/2"; .25lb) |
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ARCHIMEDES' PRINCIPLE APP.
Demonstrates buoyancy and displacement in a way that makes it easy for students to visualize and understand! This set consists of a cylinder with a closely fitted matching plug. The assembled unit is weighted using the large spring scale. The unit is lowered into water and the weight reduction noted. The displaced water is poured into the cylinder to prove that the water's weight equals the displaced weight. Comes with cylinder and plug assembly, overflow reservoir, and large spring scale. The support stand is not included. Instructions provided. (15-1/4" x 4-1/2" x 4-1/2"; 1.5lbs). |
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SPECIFIC GRAVITY CYLINDERS SET
Specific Gravity Cylinder
Determine the specific gravity of common metals! Four 13 x 50mm cylinders of aluminum, brass, steel and copper. (3-1/4" x 3" x 1"; .08Ib) |
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BOYLE'S LAW J TUBE APPARATUS
Boyle's Law Economy J-Tube Apparatus |
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Boyle's Law Apparatus & Supplies
This device is one of the classical forms of Boyle's Law, frequently described in experiment manuals. Consists of a funnel tube and a stopcock tube, connected together by a piece of flexible tubing, and running parallel to one another on aluminum rods. This allows one of the tubes to be raised higher or lower than the other and then locked in place. A meter stick is mounted between the two glass tubes, which allows for the measurement of pressure. This unit stands vertical on top of a cast iron base. Please note, mercury is not included. A heavy-weight oil can be used as a substitute for mercury. (50" x 4" x 6"; 6.2lbs). |
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CONVECTION APPARATUS LIQUID
Convection of Liquid Glass Frame
Illustrate the properties of convection currents!
The water and dye-filled glass frame is heated at the
bottom corner. When observed, the movement shows
the path of the convectional current.
(8" x 8-1/2" x 1/2"; .02Ib). |
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Convection Apparatus & Supplies
Reveal the flow of convection currents in gases! The box has a glass front and two chimneys. Place a lighted candle under one chimney, then use the touch paper to introduce smoke over the other chimney to
reveal the flow of convection. Includes instructions, smoke paper and candle. (8-1/2" x 3-1/4" x 3-1/2"; 1.75lbs). |
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Equilibrium Tube with Capillary
Tubes and Support Stand This apparatus demonstrates that capillary rise is dependent upon the inside diameter of the tube. Four glass capillary tubes of different internal diameters are sealed to a glass manifold. The unit is supported by an acrylic stand. Instructions are provided. (1-1/2" x 6" x 8"; .4lb). |
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Equilibrium Tube - Standard Tubes
When connected vessels are filled with a liquid, the liquid will rise to the same level in each vessel, regardless of the vessels shape. Four different shaped glass vessels are sealed to a glass manifold. The unit is supported by an acrylic stand. Instructions are provided. (1-1/2" x 6" x 8"; .4lb). |
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Fermentation Tubes
Used for the fermentation of
carbohydrates and for collecting
the gases that are produced. |
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GUINEA & FEATHER TUBE
(Guinea Feather Apparatus) A great visual demonstration to teach your students about air resistance! The cylinder is capped with a hard rubber closure at each end, and a hose connector at one end, which is used for air evacuation. When the tube is inverted, and the air is removed, the disc and feather will fall at the same rate because the feather does not meet any air resistance. (47" x 6" x 6"; 2Ibs). |
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Hydrometers
A useful demonstration of the density of liquids! The hydrometers are made from a borosilicate glass. Sealed inside are paper scales and a metal ballast. |
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Hydrometer Jars
The hydrometer jars are made from a heat-resistant borosilicate glass with a rolled upper edge and a wide support foot. Perfect for use with our heavy and light liquid hydrometers. |
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MAGDEBURG HEMISPHERE 3-1/2 PK/2
Magdeburg
Hemisphere
A classic in the field of teaching
about vacuums! In a modern
application of the famous
17th-Century experiment, you
can demonstrate the force of
air pressure without a vacuum
pump. When the two cups
are pressed together, the air
is evacuated and a vacuum is
created, separating the discs
will be an interesting challenge
for your students. Made from
rubber 3-1/4" diameter
(set of 2). With instructions.
(3-1/4" x 3-1/4" x1/4"; .5Ibs). |
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MAGDEBURG HEMISPHERE, CAST IRON
Cast Iron Magdeburg Hemisphere
Machined from cast iron,
this is an excellent replica of
the traditional Magdeburg
Hemisphere. One of the
hemispheres contains a mounted
brass valve for withdrawing
and sealing a vacuum. The
hemispheres are joined and the
air is evacuated with the use of
an air pump. Once the air has
been removed, your students
will find it almost impossible to
separate the discs.reintroduced, the discs separate
easily. Instructions provided.
(4-1/2" x 5-1/2" x 4-1/2"; 4Ibs) |
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MINI MAGDEMBURG HEMISPHERE
Miniature Magdeburg Hemisphere
This is a fine quality but less
expensive version of the popular
vacuum demonstration apparatus.
Air is forced from the disks after
being placed face to face. The
disks are then very difficult to
pull apart, showing the strength
of air pressure. 2.5" in diameter.
Instructions provided.
(3" x 3" x 3"; .5lbs). |
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