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Inclined Plane w/ Pulley
Inclined Plane w/ Pulley
15923

This versatile and tough steel inclined plane includes a graduated protractor and an adjustable pulley. Incline is 4" wide and 23" long. Includes a 14 oz. roller that can be used as a vehicle on the plane or as a counterweight. Also includes a pan and cord for masses.
This versatile and tough steel inclined plane includes a graduated protractor and an adjustable pulley. Incline is 4" wide and 23" long. Includes a 14 oz. roller that can be used as a vehicle on the plane or as a counterweight. Also includes a pan and cord for masses.

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$39.40 Set $78.95 Set
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Roller for Inclined Plane
Roller for Inclined Plane
15924

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.

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$12.70 Each $25.50 Each
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Build a Pulley Kit
Build a Pulley Kit
14314

Low friction modular pulleys snap together with interlocking brackets. Connect up to 6 for an exciting lab in simple machines. Tough ABS plastic brackets, 2" diameter plastic sleeves.
Low friction modular pulleys snap together with interlocking brackets. Connect up to 6 for an exciting lab in simple machines. Tough ABS plastic brackets, 2" diameter plastic sleeves.

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$5.90 Each $11.95 Each
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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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$2.55 Each $8.50 Each
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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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$2.25 Each $7.50 Each
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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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$3.15 Each $10.50 Each
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Gas Convection Apparatus
Gas Convection Apparatus
14698

Metal construction. With sliding plate glass front. Two glass chimneys. Candle holder is mounted in the box.
Metal construction. With sliding plate glass front. Two glass chimneys. Candle holder is mounted in the box.

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$7.35 Each $24.50 Each
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Bar and Gauge
Bar and Gauge
14699

Illustrates linear and spherical expansion by heating and contraction by cooling. Mild steel bar 110x12.5mm, length x diameter. Mounted on a rod with wooden handle and a brass gauge 150x38mm with a cutout mounted on a separate wooden handle which just admits the bar lengthways and a hole into which the bar passes endways when cold.
Illustrates linear and spherical expansion by heating and contraction by cooling. Mild steel bar 110x12.5mm, length x diameter. Mounted on a rod with wooden handle and a brass gauge 150x38mm with a cutout mounted on a separate wooden handle which just admits the bar lengthways and a hole into which the bar passes endways when cold.

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$3.29 Each $10.95 Each
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Heat Transfer Kit
Heat Transfer Kit
15230

Students fill one container with water at room temperature and the other with boiling water. A thermometer is placed in each container and the water temperature in both cups read before heat transfer. The metal bar is then immersed in the cups, and students observe heat lost by boiling water and heat gained in the cooler water. Each kit includes: 2 insulated containers; 2 insulated lids with slots; 1 U-shaped aluminum transfer bar; 2 thermometers 20 degrees to 110 degrees. Additional materials required: low-temperature thermometer.

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$10.19 Each $33.95 Each
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Concepts of Heat and Temperature Kit (Student version)
Concepts of Heat and Temperature Kit (Student version)
15627

Same as 15626, but does not include Basic Linear Expansion apparatus.
Same as 15626, but does not include Basic Linear Expansion apparatus.

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$21.15 Each $70.50 Each
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Compound Bar
Compound Bar
15884

This is the True and Correct Compound Bar, in which 2 metals of unequal co-efficient of expansion are used to show unequal expansion. Consists of 2 strips, brass and steel riveted together from end to end fitted to a wooden handle. On heating, the joined strips bend in a particular direction thereby showing unequal expansion. Instructions included.
This is the True and Correct Compound Bar, in which 2 metals of unequal co-efficient of expansion are used to show unequal expansion. Consists of 2 strips, brass and steel riveted together from end to end fitted to a wooden handle. On heating, the joined strips bend in a particular direction thereby showing unequal expansion. Instructions included.

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$4.90 Each $9.95 Each
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Electric Calorimeter
Electric Calorimeter
15939

Consists of an inner aluminum vessel 75mm x 50 mm, height x diameter, and an outer aluminum vessel 100 mm x 75 mm, height x diameter, with a bakelite cover with two terminals, which are cross-drilled at their lower ends and are fitted with a heating coil, the upper ends are fitted with standard sockets for electrical connections. The bakelite cover has holes for thermometer and a stirrer. Supplied complete with stirrer but without thermometer.
Consists of an inner aluminum vessel 75mm x 50 mm, height x diameter, and an outer aluminum vessel 100 mm x 75 mm, height x diameter, with a bakelite cover with two terminals, which are cross-drilled at their lower ends and are fitted with a heating coil, the upper ends are fitted with standard sockets for electrical connections. The bakelite cover has holes for thermometer and a stirrer. Supplied complete with stirrer but without thermometer.

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$7.90 Each $15.95 Each
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Specific Heat Specimen Set
Specific Heat Specimen Set
15940

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.

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$17.80 Set $35.75 Set
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Heat Absorption Apparatus
Heat Absorption Apparatus
16895

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.

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$10.65 Each $35.50 Each
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37.5 mm Lens Set
37.5 mm Lens Set
12003

Unmounted, high-quality optical glass with ground edges. Set includes 6 lenses: 1. Double convex 2. Plano convex 3. Concave/convex 4. Double concave 5. Plano concave 6. Convex/concave.
Unmounted, high-quality optical glass with ground edges. Set includes 6 lenses: 1. Double convex 2. Plano convex 3. Concave/convex 4. Double concave 5. Plano concave 6. Convex/concave.

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$4.60 Set $9.25 Set
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50 mm Lens Set
50 mm Lens Set
12004

Unmounted, high-quality optical glass with ground edges. Set includes 6 lenses: 1. Double convex 2. Plano convex 3. Concave/convex 4. Double concave 5. Plano concave 6. Convex/concave.
Unmounted, high-quality optical glass with ground edges. Set includes 6 lenses: 1. Double convex 2. Plano convex 3. Concave/convex 4. Double concave 5. Plano concave 6. Convex/concave.

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$6.40 Set $12.95 Set
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15 Spectroscope Kits w/ Study Guides
15 Spectroscope Kits w/ Study Guides
11944

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

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$24.20 Set $48.50 Set
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Newton's Color Disc
Newton's Color Disc
14747

For demonstrating that white light is composed of the seven colors of the spectrum by rotating a disc. Comprising of a seven colored metal disc attached to a pulley mounted on a metal stand driven by belt with the help of a hand driven wheel.
For demonstrating that white light is composed of the seven colors of the spectrum by rotating a disc. Comprising of a seven colored metal disc attached to a pulley mounted on a metal stand driven by belt with the help of a hand driven wheel.

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$14.70 Each $29.50 Each
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Light Box Kit
Light Box Kit
14763

Includes 8 acrylic plastic blocks: 1 rectangular, 1 semi-circular, 1 double concave, 1 equilateral 60 x 60 x 60 degrees, 2 right angle 90 x 60 x 30 degrees and 90 x 45 x 45 degrees, 1 circular, 1 double concave. 8 mounted color filters. 2 Slit Plates. 3 Mirrors: 1 plane mirror, 1 semicircular, 1 parabolic. 1 Set of Colored Cards. The Light Box is used to perform experiments in reflection, refraction and color mixing. Box has hinged sides to produce divergent, convergent or parallel rays of light. Light Box has grooves to accept slit plates or color filters. Operates on 12 V. spare bulb provided. Supplied in a thermocole box with place for each part.
Includes 8 acrylic plastic blocks: 1 rectangular, 1 semi-circular, 1 double concave, 1 equilateral 60 x 60 x 60 degrees, 2 right angle 90 x 60 x 30 degrees and 90 x 45 x 45 degrees, 1 circular, 1 double concave. 8 mounted color filters. 2 Slit Plates. 3 Mirrors: 1 plane mirror, 1 semicircular, 1 parabolic. 1 Set of Colored Cards. The Light Box is used to perform experiments in reflection, refraction and color mixing. Box has hinged sides to produce divergent, convergent or parallel rays of light. Light Box has grooves to accept slit plates or color filters. Operates on 12 V. spare bulb provided. Supplied in a thermocole box with place for each part.

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$52.50 Each $105.00 Each
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Concepts of Light Kit (Teacher's Version)
Concepts of Light Kit (Teacher's Version)
15628

This educational kit contains materials and instructions for safe, hands-on inquiry-based experimentation into the nature and properties of light. This kit is primarily aimed at students in Middle School but may be used by Elementary or High School students by slightly altering the instructions. Instructions are also included for Science Fair activities and optional Probeware/Data-Logging activities. Experiments that can be performed: What is light? How does light travel? How do lenses effect light? How do mirrors affect light? How does color relate to light? etc.
This educational kit contains materials and instructions for safe, hands-on inquiry-based experimentation into the nature and properties of light. This kit is primarily aimed at students in Middle School but may be used by Elementary or High School students by slightly altering the instructions. Instructions are also included for Science Fair activities and optional Probeware/Data-Logging activities. Experiments that can be performed: What is light? How does light travel? How do lenses effect light? How do mirrors affect light? How does color relate to light? etc.

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$65 Each $130.00 Each
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Concepts of Light Kit (Student version)
Concepts of Light Kit (Student version)
15629

Experiments that can be performed include:
• What is light?
• How does light travel?
• How do lenses effect light?
• How do mirrors affect light?
...and more!


Items included in the kit:
•Acrylic Prism Set of 6
• Wooden Storage Box for Prism Set - 1
• Ray Box - 1
• Plane Mirror - 1
• Concave Mirror - 1


This educational kit contains materials and instructions suitable for safe hands-on inquiry-based experimentation into the nature and properties of Light. This kit is primarily aimed at students in Middle School but may be used by Elementary or High School students by slightly altering the instructions. Instructions are also included for Science Fair activities and optional Probeware/Data-Logging activities. Items included in the kit: Acrylic Prism Set of 6: Triangular Prism - 1, Half Round Prism - 1, Double Concave Prism - 2, Double Convex Prism - 1, Rectangular Prism (Brick) - 1
Wooden Storage Box for Prism Set - 1, Ray Box - 1, Plane Mirror - 1, Concave Mirror - 1.

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$52 Each $104.00 Each
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Diffraction Grating
Diffraction Grating
15944

Glass mounted for use with Spectrometers and Spectrum Tubes. Viewing area 44 mm x 300mm. 15,000 lines per inch.
Glass mounted for use with Spectrometers and Spectrum Tubes. Viewing area 44 mm x 300mm. 15,000 lines per inch.

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$11.20 Each $22.50 Each
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50 mm Convex Mirror
50 mm Convex Mirror
12001

Unmounted, high-quality silvered glass. Focal length 150 mm.
Unmounted, high-quality silvered glass. Focal length 150 mm.

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$1.10 Each $2.20 Each
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Wood Mirror Support
Wood Mirror Support
14035

Designed for spherical mirrors and lenses. Support is 5" tall and has a 1.5" V-shaped grooved wedge to hold mirrors or lenses 38mm to 100mm securely in place.
Designed for spherical mirrors and lenses. Support is 5" tall and has a 1.5" V-shaped grooved wedge to hold mirrors or lenses 38mm to 100mm securely in place.

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$2.10 Each $4.25 Each