Earth is constantly changing massive pieces of its outer layer are slowly sliding under, over, away from, or past each other. Earthquakes shake the continents and oceans, and volcanoes spew out the molten insides of our planet. By studying these awe-inspiring and devastating natural phenomena, you can learn more about the inner workings of Earth. A full-colour, 48-page experiment manual is included. • Build and erupt model volcano with plaster-based ""lava"" that hardens after each eruption. • Volcano can be erupted multiple times volcanic cone builds up with each eruption, like real volcano. • Learn about the different types of volcanoes. • Build working seismograph and simulate earthquakes to see how scientists measure earthquake forces. • Discover plate tectonics, and see how volcanoes and earthquakes are caused by the constant movement of the planet's parts. • Assemble plate tectonics puzzle and geological globe. Play volcano quiz game to learn about well-known volcanoes.
This gobe has striking cartography and features raised relief on the landmasses to give tactile indication of the location of the world's mountain ranges. It also uses raised relief to portray the ocean depths, revealing the trenches and mid ocean rises, which are important to the understanding of plate tectonics and oceanography. The ocean mapping also shows the direction of major currents, which is useful for an understanding of climatology and meteorology. • 300 mm diameter • Over 4000 place names and pieces of information • Suitable for advanced geographic study • Graduations on meridian help to work out lines of longitude latitude • Includes time dial to calculate different time zones • Available mounted on sturdy metal base and meridian or durable plastic base and meridian. • Assembled in the UK with recycled and recyclable materials, using traditional methods • Supplied with information booklet
This useful unit includes four low voltage lamp holders connected in parallel and mounted on BES type base. Individual switches control each lamp, allowing all, some, or none of the lamps to be lit. Four colour-coded 4 mm sockets can be used to link multiple sets together or to connect a power supply and Voltage and Current sensors or meters. Unit comprises: 4 On/Off toggle switches;4 x 4 mm sockets; 4 lamp holders supplied without bulbs, which are available separately. Suggested uses: • Use hand powered generator (EN98100) to feel the increase in power and energy needed to successively light more lamps. • Use with a battery or power supply to study the relationship between voltage, current and resistance. • Useful for studying power, efficiency, and Ohm's law in simple circuit. • Simple to use and quick to set up, as individual components do not need to be connected together to make circuit.
A simple electricity kit designed to make the teaching of electricity fun. Specification: • Robust plastic holders • Clear cover on the base so components clearly visible • 4 mm sockets for ease of connection • Electrical symbol • 20+ individual types available • Teachers instructions • 3 classroom kits available Starter BES kit comprises: • 6 Lamp holders • 4 Cell holders • 2 Push switches • 5 Black leads • 5 Red leads • Teachers instructions
A simple electricity kit designed to make the teaching of electricity fun. Specification: • Robust plastic holders • Clear cover on the base so components clearly visible • 4 mm sockets for ease of connection • Electrical symbol • 20+ individual types available • Teachers instructions • 3 classroom kits available Standard BES kit comprises: • 6 Lamp holders • 6 Cell holders • 2 Push switches • 2 Changeover switches • 1 Motor • 1 Buzzer • 1 Component holder • 5 Black leads • 5 Red leads • Teachers instructions
240 V Rough Service lamp which adequately replaces the traditional carbon filament lamp but has the added benefit of being more robust. Suitable for use in optics experiments such as pinhole cameras, projection of an image, determining focal length of lens etc.
Spiral-type, 230/240 V mains voltage low energy light bulbs. These are not suitable for dimming or electronic switches. Bulbs use 5 times less energy than traditional bulbs and are expected to last 8000 hours, based on 3 hours per day burn time. Colour: Warm white.
230 V 'daylight' GLS bulb which simulates natural daylight, offering enhanced colour rendition and improved contrast for inspection, industrial lighting and other visually demanding applications.
Lens ended bulbs, with MES bases, producing focused beam of light. Commonly used in torches and applications where directed beam is required. Dimensions: Diameter 9.5 mm (max.) length 24 mm (overall).
12 V bulbs, with SBC fitting, and radial (horizontal) filaments. Can be used in ray box if the bulb holder is rotated such that the filament is parallel to the beams, effectively making it point source. Dimensions 35 x 19 mm. Power 5 W.
12 12 bulbs, with SBC fitting, and radial (horizontal) filaments. bulbs, with SBC fitting, and radial (horizontal) filaments. Can be used in ray box if the bulb holder is rotated such that the filament is parallel to the beams, effectively making it point source.
Single tone output, panel mounting, transistor oscillator DC buzzer. • Voltage: 6 V • Rated current: 25 mA • Frequency: 400±100 Hz • Sound output: 70-75 dB 30 cm • 100 mm colour-coded leads
Packs of 10 low cost miniature buzzers. These come complete with flying leads and are ideal for educational projects and general purpose use. • Current: 30 mA • Dimensions (L x W x H): 23 x 17 x 15 mm • Fixing Centres: 27.5 mm • Lead Length: 80 mm
Photoconductive cadmium sulphide light dependent resistor (LDR) in a miniature epoxy sealed open frame package (4 mm dia.). Cell resistance reduces as light falling on the device increases. Typical applications include light control, cameras, toys etc. Sold as pack of 10. • Peak spectral response: 540 nm. • Light resistance: 50-100 Kohm • Dark resistance: 20 Mohm minimum • Max. voltage: 100 V • Power max: 90 mW • Working temp. range: -20 to +60°
Photoconductive cadmium sulphide cell with a spectral response similar to the human eye. As light falling on the cell increases, so the resistance of the cell decreases. Peak spectral response: Typ. 550 nm. Cell resistance: 9 kΩ at 10 lux. 400 Ω at 1000 lux. Dark resistance: Min. 1 MΩ. Sold as pack of 5.
Ideal for projects, providing high power and low speed and designed to fit our MM28 type motors. The Perspex base incorporates holes for screw fixing if required. The assembly also includes precision worm and gearwheel, and 150 mm long 4 mm dia. output shaft. RoHS compliant. Motor not included.
Battery operated LED plastic strobe with speed control and on/off button. Made from robust plastic with hanging bracket. Flashes up to times per second. Requires 4x AA batteries. Dimensions (WxHxD): 82 x 50 x 140 mm.
The Casio FX-83GTX Scientific Calculator contains a range of features such as clearer display, clearer menus, faster processor and 14 additional functions. Approved for Key Stages and (including GCSE, National and Higher, Junior and Leaving). The Casio FX-83GTX can be used legitimately in every UK exam where calculator is allowed. New functions include Ratio, Digit Separator, Advanced Statistics, Advanced Tables and Variables List.
This burette rack is natural wood and metal construction it holds up to 12 burettes of up to 20 mm diameter. The design allows for easy storage and removal of the burettes. Includes brackets for wall mounting. Assembly required. Dimensions (H x W x D): 597 x 813 x 76 mm.
Epoxy-coated steel wire dual panel draining rack, it can be free standing or used as two wall mounted racks. Contains 122 pegs each peg is 70 mm long arranged as eight rows of ten pegs four each side) and six rows of seven pegs three each side). Dimensions 560 x 580 x 330 mm.
Clear polystyrene ruler, 300mm/12inch, perfect for school, home and office use. Both metric and imperial measurements, great for geometry and technical drawing purposes.
An easy-to-use meter that measures temperature and light. High accuracy, fast response Colour LCD with backlight Max/min recording function Auto power-off (can be disabled) Temperature -20 70°C Light 200 klux Takes 3 x AAA batteries