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Schoolmasters Science

313 products

Showing 49 - 72 of 313 products
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Linear Expansion Apparatus
Linear Expansion Apparatus
14696

Metal construction. Complete with 3 metal rods (aluminum, bass and iron). stove hammer finish mounted on wooden polished base.
Metal construction. Complete with 3 metal rods (aluminum, bass and iron). stove hammer finish mounted on wooden polished base.

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$51.95 Each
Conductometer
Conductometer
14695

Demonstrates the difference in thermal conductivity of different metals. Consists of five metal rods stainless steel, brass, copper, iron and aluminum connected to a center metal, brass, hub which is mounted on a rod with wooden handle. The five rods have depressions on the ends to hold wax. When the center hub is heated, heat is conducted through the rods and conductivity of heat can be ascertained by the melting of wax.
Demonstrates the difference in thermal conductivity of different metals. Consists of five metal rods stainless steel, brass, copper, iron and aluminum connected to a center metal, brass, hub which is mounted on a rod with wooden handle. The five rods have depressions on the ends to hold wax. When the center hub is heated, heat is conducted through the rods and conductivity of heat can be ascertained by the melting of wax.

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$9.95 Each
Ball and Ring
Ball and Ring
11737

Demonstrates expansion of metals with heat.
Demonstrates expansion of metals with heat.

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$13.50 Each
Aluminum Pulley - Triple Tandem
Aluminum Pulley - Triple Tandem
16875

Strong Aluminum Pulleys with deep V-grooves mounted in metal bracket with hooks on both ends. Pulleys are 2" (50mm) dia.
Strong Aluminum Pulleys with deep V-grooves mounted in metal bracket with hooks on both ends. Pulleys are 2" (50mm) dia.

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$8.25 Each
Bench Mounting Adjustable Pulley
Bench Mounting Adjustable Pulley
16870

Strong all metal construction, can be mounted on a table up to 2" (50mm) thick. Aluminum Pulley, 1.125" (300m) diameter, mounted on a vertically height adjustable bracket, which can slide up and down, and can be tightened at any point, from being parallel to the clamping surface, up to 2" (50mm) higher to the clamping surface.
Strong all metal construction, can be mounted on a table up to 2" (50mm) thick. Aluminum Pulley, 1.125" (300m) diameter, mounted on a vertically height adjustable bracket, which can slide up and down, and can be tightened at any point, from being parallel to the clamping surface, up to 2" (50mm) higher to the clamping surface.

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$10.50 Each
Pulley with Clamp
Pulley with Clamp
14778

Rugged plastic pulley with deep V groves mounted on a metal clamp. The sheave is 50mm in diameter. Clamp can be mounted on surfaces up to 25mm thick.
Rugged plastic pulley with deep V groves mounted on a metal clamp. The sheave is 50mm in diameter. Clamp can be mounted on surfaces up to 25mm thick.

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$5.95 Each
Pulley Bench Mounting
Pulley Bench Mounting
14777

Aluminum pulley 37mm diameter. mounted in thick strong metal frame for clamping to benches or boards.
Aluminum pulley 37mm diameter. mounted in thick strong metal frame for clamping to benches or boards.

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$7.50 Each
Pulley on Rod
Pulley on Rod
14776

Aluminum pulley 50mm diameter. Mounted in a bracket on a rod.
Aluminum pulley 50mm diameter. Mounted in a bracket on a rod.

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$8.50 Each
Single-Quadruple Wheels
Tandem PulleyTandem Pulley
Tandem Pulley
13654

Pulley is high-quality impact-resistant, chip-proof injection molded, balanced wheel. Smooth, clean V-groove. Wheel diameter 2", 360 degrees swivel hooks-top and bottom. All steel blocks.

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From $4.25 Each
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Single-Quadruple Wheels
PulleyPulley
Pulley
11589

Pulley is high-quality impact-resistant, chip-proof injection molded, balanced wheel. Smooth, clean V-groove. Wheel diameter 2", 360 degrees swivel hooks-top and bottom. All steel blocks.

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From $1.95 Each
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Scale Pan
Scale Pan
14701

General purpose use and also for use with inclined plane. Metal pan with cords for suspension.

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$4.75 Each
Gyroscope
Gyroscope
11735

6 cm in diameter. Supplied with supported base with socket at top end for holding the gyroscope and demonstrating various principles.
6 cm in diameter. Supplied with supported base with socket at top end for holding the gyroscope and demonstrating various principles.

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$16.70 Each
Inertia Demonstrator
Inertia Demonstrator
16963

This robustly constructed inertia demonstrator works reliably every time and is a great improvement on traditional versions of this classic experiment. A steel ball rests on a thin metal card on top of a pillar, and a spring-loaded catch is mounted next to the pillar. When the catch is released, a piston strikes the edge of the metal card sharply. The card flies out from under the ball, which remains in place on top of the pillar due to its large inertial mass. The card is tethered to the aluminum base for easy recovery after the experiment.
This robustly constructed inertia demonstrator works reliably every time and is a great improvement on traditional versions of this classic experiment. A steel ball rests on a thin metal card on top of a pillar, and a spring-loaded catch is mounted next to the pillar. When the catch is released, a piston strikes the edge of the metal card sharply. The card flies out from under the ball, which remains in place on top of the pillar due to its large inertial mass. The card is tethered to the aluminum base for easy recovery after the experiment.

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$18.95 Each
The Spillnot
The Spillnot
16962

The design of the Spillnot uses the principles of Newtonian physics to keep the liquid in the container. The flexible handle and location of the suspension point above the center of the tray ensure that the forces on the liquid are always directed toward the supporting tray, even when the tray is in motion. Sideways forces usually responsible for spills are not transmitted to the tray by the flexible handle. Radial forces generated during swinging motion only force the liquid into the container more firmly. An inexpensive demonstration to intrigue students and challenge their analytical powers! Includes activity guide. 5" x 5" x 9". Weight: .25 lbs.
The design of the Spillnot uses the principles of Newtonian physics to keep the liquid in the container. The flexible handle and location of the suspension point above the center of the tray ensure that the forces on the liquid are always directed toward the supporting tray, even when the tray is in motion. Sideways forces usually responsible for spills are not transmitted to the tray by the flexible handle. Radial forces generated during swinging motion only force the liquid into the container more firmly. An inexpensive demonstration to intrigue students and challenge their analytical powers! Includes activity guide. 5" x 5" x 9". Weight: .25 lbs.

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$19.50 Each
Free Fall Tube
Free Fall Tube
16877

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.

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$43.50 Each
Hooke's Law Apparatus
Hooke's Law Apparatus
15881

For demonstrating Hooke's Law and for studying simple harmonic motion of vibrating weight suspended from spring and potential energy. It consists of a heavy base with an adjustable mirror millimeter scale, a spiral spring with indicator and weight hanger. Complete with four 50g slotted weights. Instructions included.
For demonstrating Hooke's Law and for studying simple harmonic motion of vibrating weight suspended from spring and potential energy. It consists of a heavy base with an adjustable mirror millimeter scale, a spiral spring with indicator and weight hanger. Complete with four 50g slotted weights. Instructions included.

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$21.95 Each
Cosmic Energy Kinetic Scuplture
Cosmic Energy Kinetic Scuplture
12932

Battery charged electro-magnetic mobile with perpetually moving forms. 9 1/4" high. One 9V battery required.
Battery charged electro-magnetic mobile with perpetually moving forms. 9 1/4" high. One 9V battery required.

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$12.95 Each
Ball and Card
Ball and Card
11736

Newton's Second Law of Motion. Demonstrates inertia.
Newton's Second Law of Motion. Demonstrates inertia.

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$10.95 Each
Archimedes Principle Demonstration
Archimedes Principle Demonstration
14703

Demonstrates the principle of Archimedes. Consists of two pieces: cylinder and close fitting bucket. All brass construction. 50mm long.
Demonstrates the principle of Archimedes. Consists of two pieces: cylinder and close fitting bucket. All brass construction. 50mm long.

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$13.50 Each
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Density Blocks Set
Density Blocks Set
14709

Dense wood cube 1" sides. Average weight 16 grams/cube. Wood block: 2" x 2" x 1/8" soft wood. Steel block: 2" x 2" x 1/8". Aluminum block: 2" x 2" x 1/8"
Dense wood cube 1" sides. Average weight 16 grams/cube. Wood block: 2" x 2" x 1/8" soft wood. Steel block: 2" x 2" x 1/8". Aluminum block: 2" x 2" x 1/8"

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$3 Each $4.95 Each
Density Balls - Set of 6
Density Balls - Set of 6
14706

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.

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$39.95 Set
Density Cylinders - Set of 4
Density Cylinders - Set of 4
14705

Aluminum, brass, copper, and steel. 50mm x 12.5 mm.
Aluminum, brass, copper, and steel. 50mm x 12.5 mm.

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$11.50 Set
Density Cubes - Set of 6
Density Cubes - Set of 6
14704

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.

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$42.50 Set
*zPix 200 Digital Microscope with Digital Camera
*zPix 200 Digital Microscope with Digital Camera
16663

The zPix 200 MM-740 from Carson is a powerful Zoom Digital Microscope that displays the Magnified image right on your computer screen. The impressive 36x-176x Zoom Magnification allows you to see details of ordinary objects you never knew existed! Capture an image by using the built-in 1.3 megapixel resolution Digital Camera. You can even capture close-focus video! The zPix 200 MM-740 Zoom Digital Microscope is compatible with the following: Mac OSX 10.4 or later, OSX 10 Mavericks, PC with Windows 2000 SP4, Windows XP, Windows Vista, Windows 7. A USB 2.0 port is required. DOES NOT WORK WITH TABLETS.
The zPix 200 MM-740 from Carson is a powerful Zoom Digital Microscope that displays the Magnified image right on your computer screen. The impressive 36x-176x Zoom Magnification allows you to see details of ordinary objects you never knew existed! Capture an image by using the built-in 1.3 megapixel resolution Digital Camera. You can even capture close-focus video! The zPix 200 MM-740 Zoom Digital Microscope is compatible with the following: Mac OSX 10.4 or later, OSX 10 Mavericks, PC with Windows 2000 SP4, Windows XP, Windows Vista, Windows 7. A USB 2.0 port is required. DOES NOT WORK WITH TABLETS.

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$89.95 Each