Spare armatures for the Westminster Electromagnetics Kit (B8H26357) moulded; complete with winding grooves; sockets for index straws and metal bearing tube.

• Dimensions: 44mm x 30mm x 12mm
• Pack of 10

Wire Helix (Slinky) - 55mm

Ideal for demonstrating different types of waves. Flat-section steel wire in helical coil.

Dimensions:

• Diameter: 75mm
• Height: 55mm

Wire Helix (Slinky) - 165mm

Ideal for demonstrating different types of waves. Flat-section steel wire in helical coil.

Dimensions:

• Diameter: 75mm
• Height: 165mm

Wire Helix (Slinky) - 110mm

Ideal for demonstrating different types of waves. Flat-section steel wire in helical coil;

Dimensions:

• Diameter: 75mm
• Height: 110mm

A miniature double pole double throw slide switch suitable for panel mounting. Connections are by solder tags.

• Maximum rating: 250V a.c.; 0.25A
• Dimensions of body: 15mm x 8mm x 7mm
• Fixing centres: 19mm
• Pack of 5

A set of 16 discs (25mm in diameter) for demonstrating that some metals are magnetic; whilst others are not; and for general metal identification exercises.

The set contains:

• 2 x Mild Steel;
• 2 x Stainless Steel;
• 2 x Brass;
• 2 x Nickel;
• 2 x Silver;

A set of twelve metal strips for magnetism work. Each stamped with a key letter for identification. Ideal for experiments to demonstrate magnetic properties and classifications of metals.

The metal strips consist of:

• Soft Aluminium
• Brass
• Copper
• Mild Steel<...

A set of optical apparatus for all types of optical experiment involving reflection; refraction and colour mixing. The principal component is a robust light box finished in matt black with a 1W halogen lamp with 0.75m of twin flex. One end of the box has a cylindrical convex lens in an adjustab...

Clear acrylic blocks which are all 15mm thick.  All faces are fully polished. 

The set comprises 7 blocks in a storage tray as follows:

• Rectangular: 75mm x 50mm.
• Semi-circular: 75mm diameter.
• Triangular: 60° x 60° x 60°; 58mm sides.
• T...

Ideal for demonstration purposes where standard size items may be considered inconveniently small.  All blocks are fully polished; 10mm thick and housed in a fitted expanded polystyrene carton.

The set includes:

• Rectangular block: 190mm x 110mm
• Equilateral Triangular...

A fun way to learn about the power of sunlight. As well as making bracelets; pupils are able to carry out fun experiments investigating solar radiation; effectiveness of sun cream and sunlight. A science activity guide is included and allows children to carry out scientific investigations and lea...

Newton Meters - 250g; 2.5N Blue

Plastic tubular newton spring balances. Each range is colour coded for convenience and is scaled in both grams and newtons. The spring mechanism is clearly visible; and zero adjustment is incorporated.

• Length (including ring and hook): 250mm

Newton Meter - 500g; 5N Green

Plastic tubular newton spring balances. Each range is colour coded for convenience and is scaled in both grams and newtons. The spring mechanism is clearly visible; and zero adjustment is incorporated.

• Length (including ring and hook): 250mm

Newton Meter - 1kg; 10N Brown

Plastic tubular newton spring balance. Each range is colour coded for convenience and is scaled in both grams and newtons. The spring mechanism is clearly visible; and zero adjustment is incorporated.

• Length (including ring and hook): 250mm

Newton Meter - 2kg; 1N Red

Plastic tubular newton spring balances. Each range is colour coded for convenience and is scaled in both grams and newtons. The spring mechanism is clearly visible; and zero adjustment is incorporated.

• Length (including ring and hook): 250mm

Newton Meter - 3kg; 30N White

Plastic tubular newton spring balances. Each range is colour coded for convenience and is scaled in both grams and newtons. The spring mechanism is clearly visible; and zero adjustment is incorporated.

• Length (including ring and hook): 250mm

Newton Meters - 5kg; 50N Yellow

Plastic tubular newton spring balances. Each range is colour coded for convenience and is scaled in both grams and newtons. The spring mechanism is clearly visible; and zero adjustment is incorporated.

• Length (including ring and hook): 250mm

A comprehensive kit for investigating the properties of silicon photo-voltaic (solar) cells as a source of useful power; in an interesting and practical manner. The kit comprises eight individual 0.4V 100 mA cells. These may be accommodated in the base 'tray' which provides physical support and f...

BEK Electric motor with drive pulley securely mounted on yellow plastic base. Accepts 4mm plugs or crocodile clips.

• Maximum Recommended Voltage: 6V

Carbon Rods for the BEK electrode holder (B8H79994) which is available to purchase separately.

• Supplied in packs of 10