Showing 1–9 of 493 results

  • 1D Battery Box with Binding Posts

    PBH1DBP is a plastic battery holder that holds one D cell battery. This battery holder has two binding posts (Red for + and Black for -). This battery holder is designed for quick and easy demonstrations and experiments in a classroom or for educational activities.

  • 500 Gram Slotted weight for Aluminum Weight Hanger

    This is a 500-gram slotted weight for aluminum weight hanger WH50A or any weight hanger with stem diameter of 5 mm or less.

    The slot width is 5.2 mm and the center hole diameter is also 5.2 mm. In other words the center hole is just an extension of the slot.

  • AC Transformer, 12 V Plugin type

    $25.00

    Plug-in transformer
    Input: 120 Volts AC, 60Hz 50W
    Output: 12 Voltc AC, 40VA

  • AC Transformer, 120 to 9 Volts

    Portable AC transformer, Converts 120 volts AC to 9 Volts AC.

  • ACCESSORIES FOR OPTICAL DISK, HARTL

    Includes the following glass lenses or prisms. Frosted faces. Thickness 10mm. Packed in a velvet lined case. Spherical bi-convex lens, length 85mm Spherical bi-concave lens, length 85mm Triangular right angle prism (90ß-45ß-45ß), hypotenuse 75mm Trapezoidal prism, base 85mm Semicircular lens, diameter 85mm Circular lens, diameter 85mm

  • Activated Carbon Powder

    powdered activated carbon from coconut shell is a virgin powdered activated carbon. Derived from selected grades of coconut shell, it is ideal for many liquid phase applications including the removal of organics from water streams. Certified by the NSF, it is suitable for drinking water and food grade applications.

  • Activated Carbon, Granules

    coconut shell granular activated carbon is a virgin activated carbon, which is granular in form. Made from selected grades of coconut shell, it is ideal for many gas and liquid phase applications including the removal of organics from water streams. Its superior level of hardness makes it cleaner than most other carbons and gives it longer life expectancy. Certified by the NSF, it is suitable for drinking water and food grade applications.

  • Air Motor Car Kit (Car Propeller Kit)

    Make a model car that moves by air. Using air to propel a car eliminates the need to complex components such as gears, chains, belts and pulleys.The motor and propeller work together to create air current and push the car forward.
    This project is also an electric circuit project with a practical use.
    The kit contains almost everything (as shown) you need to complete your project. Batteries however are not included and you will also need wood glue (White glue) as well as some craft skills.

  • ALHIN CONDENSER

    Made of ground glass. Standard 24/40 full length joints