Specialist Sciences

A versatile modelling material which never dries out and can be moulded, cut, shaped, rolled and reused repeatedly. Colour clay is substitute for plasticine and is equivalent in quality. Despite being malleable, models will always retain their shape. Used extensively in schools and colleges. Supplied in packs of 500 g.

A versatile modelling material which never dries out and can be moulded, cut, shaped, rolled and reused repeatedly. Colour clay is substitute for plasticine and is equivalent in quality. Despite being malleable, models will always retain their shape. Used extensively in schools and colleges. Supplied in packs of 500 g.

This fun resource can be used to demonstrate open and closed circuits as well as bringing some WOW to your science lessons. Completely safe to use, simply touch both the contacts on each end of the stick to form a complete circuit. When a circuit is formed the Circuit Maker/Breaker will emit a loud beep and the lights on the front will glow up. As soon as one of the contacts isn't touched, the circuit will be broken and the Circuit Maker/Breaker will stop working. Bring some WOW to your lesson by adding more and more people to the circuit! Get the children to form a circle linking hands so that the circuit maker breaker will light up and beep, but when the link is broken then the stick stops working. How many children can you get to complete your circuit? Add a further challenge by allowing the children to find objects to put in the link that will break or continue the circuit for the stick to work! Or use the Circuit Maker/Breaker as a tester of insulators or conductors by covering the ends of the stick with different materials and testing whether circuit can still be created. Based on teacher feedback, we have specifically designed the Circuit Maker/Breaker to be large in size so that it can be seen by all of the class. Measuring 15 x 5 cm in size and made from durable ABS plastic the Circuit Maker/Breaker is powered by 2 x AAA batteries with battery life of approx year in standby.

This toy has a serious scientific purpose because it provides a stunning demonstration of vortex formation and transmission. When the toy is 'fired' doughnut shaped ring of air (the vortex) is generated and moves outwards at high speed. It has sufficient energy to create a noticeable impact at some distance hence the toy interest. Ideal as a design project to attempt to recreate the same effect using cardboard boxes, etc.

This very large 3ft resistance parachute is ideal to encourage children to run. Not only can it be used as fun outdoor activity, it can also be used to learn about the effects of air resistance.

Make a circle, join hands, use the Cosmic Ball to complete an electric circuit and watch as it lights up, pulses brightly and emits sound when the circuit is completed.

Make 'snow' in matter of minutes with this amazing Super Snow polymer, which expands to over 100 times its size and last for weeks without rewetting. In addition, the 'snow' can be reused. Simply add to water and stir until expansion occurs, creating wet looking 'snow'. Pack includes 60 of Super Snow, colouring tablets (to create different coloured 'snow') and instruction sheet.

Polymorph is one of new generation of commercial polymers set to have major impact on model making and prototyping. This polymer has all the characteristics of tough ""engineering"" material yet it fuses and becomes easily mouldable at just 62°C. It can be heated with just hot water or hairdryer and moulded by hand to create prototypes and solve manufacturing problems currently outside the capacity of other materials.

UV colour change beads which change from white to various colours under natural sunlight or UV light. Supplied as pack of 500 mixed colour beads.

A remarkable self adhesive sheet material printed with thermochromic liquid crystal 'ink'. Changes colour (bright blue) when heated above 27°C. Potential applications are many and varied. e.g, temperature indication/warnings, body jewellery, advertising displays (attach resistance wire to the rear and pass a small current to cause dramatic colour changes to the front 'screen'. Note: Typical applications require only very small pieces e.g. 25 x 25 mm.

Far more than just starter kit, this comprehensive selection case contains a vast array of smart and unusual materials and is ideal for those required to give presentations or demonstrations about materials. The case includes smart materials book and some basic accessories for handling the materials. Case size: 46 x 33 x 15cm. Case contents • Thermally responsive: Thermochromic pigment; Thermofilm; Thermal paper (fax); Phase change powder. • Smart Alloys and Polymers: Shape memory polymer; Smart putty; Rare earth magnet; Superelastic wire; Memory wire; 2-way memory spring. • Optically Responsive Materials and LEDs: Glow-in-the-dark film; Optical fibre; UV fluid; UV beads; LEDs. • Fibres and Woven Materials: Silk Cocoons; Kevlar fabric; Carbon fibre fabric; Ripstop nylon; Silk; Lycra; Ecofilm; Genuine carbon fibre sheet. • Special Polymers: Polymorph; Hydrogel; Expancel; Chromatic Alginate. • 'Nano' Materials: QTC pills; Broken shells; Chameleon nano flakes; Smart film.

A 5 mm dia. x 12 mm (when closed) spring made from shape memory alloy (NiTi). At room temperature this spring is soft enough to pull out to approximately 50 mm by applying a small force. When heated to 70°C by passing an electric current through it, the spring contracts to its original length with useful pulling force (equivalent to lifting 0.5 kg weight).

This remarkable alloy melts at just 61°C but, unlike the most familiar low melting point alloys, does not contain lead or cadmium. It is a relatively hard and extremely tough alloy that has a wide variety of scientific and manufacturing applications. It is used for example to fill small tubes for bending without crushing, casting for models and jewellery, and for making precision moulds. Although relatively expensive because it contains the rare element indium, Field's metal makes a fantastic demonstration of how several constituents, each with much higher melting point, can be combined to produce fusible alloy. Note: indium has risen in price recently because of its use in LCD TV screens. It 'wets' and adheres to many surfaces hence the propensity of Field's metal to adhere to plastics. Approx. 10 g.

With two plano-convex glass lenses in folding plastic moulded body. Diameter 17 mm.

A 35 mm optical quality acrylic hand lens. Supplied in packs of 10.

A 50 mm diameter optical quality acrylic hand lens. Supplied in packs of 10.

Mini Thermo-Anemometer

This carbon dioxide detector measures CO2, air temperature and humidity. A useful tool to help to regulate ventilation in enclosed spaces such as classrooms, indicating when fresh air should be allowed in to help remove air that contains virus particles and to help prevent the spread of Covid-19. People exhale carbon dioxide when they breath out. If there is a build-up of this in an area it can indicate that ventilation needs improving. This device adopts a high-precision non-dispersive infrared CO2 sensor that detects CO2 accurately and sensitively. Containing a high-capacity rechargeable lithium battery, making it easily portable. To preserve electricity, it powers off after 30 minutes of inactivity. A USB charging cable is also provided allowing simple recharging using either a PC or mains plug. Product specifications: CO2 concentration measurement; •Range: 0 to 9999ppm •Accuracy: +/-75ppm / +/-5% of rdg •Resolution: 1ppm Temperature and humidity detection; •Temperature range: -20 to +70°C •Temperature accuracy: +/-2°C •Temperature resolution: 0.1°C •Humidity range: 0 to 100%RH •Humidity accuracy: +/- 3.5%RH (20 to 80%RH) otherwise +/-5%RH •Humidity resolution: 0.1%RH Battery: 1000mAh rechargeable lithium battery Battery charge: USB 5V charging Dimensions: 90mm x 60mm x 47mm LCD dimensions: 49mm x 38mm Operating conditions: 0 to +50°C

Observe living creatures in this ventilated viewing pot with 5x magnification lid. Clear base with micro ruler.

These Pooters are designed not to be perfectly round so that bugs will find a crevice to hide in and are easier to observe. The jar contains two holes; one of which has a fine mesh covering to prevent bugs being drawn into the mouth. Two lengths of tubing (removable for easy washing) are supplied.