Specialist Sciences

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.

In packs of 100. Please note that these are not latex free.

Paper modelling straws for art and craft work. Standard size.

Various colours. Dimensions x 150 4 mm (L x W).

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.

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.

This economy hand wash lotion kit offers new dimension to hand and hygiene lessons. The powerful UV lotion is invisible under daylight conditions but will glow bright using the unique UV Torch included in the kit. The kit consists of 100 mL lotion bottle (sufficient for 30+ individual demos), a 9 LED specialist UV detection torch and full instructions. great UV starter kit once you have the torch, simply extend the kit with extra bottles of lotion as required.

Non-toxic and highly fluorescent under UV light, this powder is supplied into the NHS and some of the UK's leading care home groups. GermaGlo invisible powder kit is used to demonstrate and simulate how easily germ transfer can occur and to show the dangers of poor hand washing techniques. The kit consists of: 1 x 20g GermaGlo Powder, 1 x UV Detection Torch with LED's, 1 x Germ Transfer Bio Ball, 1 x Pair Latex Gloves, 1 x Full application instructions/advice notes.

Germaglo Powder is a safe and non-toxic invisible UV fluorescing powder used by some of the leading care homes groups in the UK as well as the NHS. Trainers use this product to create a strong visual message on the ease of germ transfer between objects and people. Germaglo hand wash powder will fluoresce brightly under UVA blacklight. Full instructions and handy advice notes are supplied with this item. A suitable UV light device is required.

This germ simulation lotion changes from invisible to neon green colour to enhance hand wash and hygiene demonstrations. This is high quality product sold directly to the NHS and many of the UK's leading care home organisations. Supplied complete with full training notes and guidance on use. 100 mL bottle will give approx. 30 applications. The formula is pH neutral and completely non-toxic. UV hand wash lotion will enhance your training with strong visual message encouraging good hand and hygiene techniques. The invisible pigmentation requires good quality UVA blacklight for participants to view the 'before and after 'visual results.

This activity provides the most procedurally accurate simulation of the blood typing technique available. Students test and determine the ABO/Rh blood types of four different simulated blood samples. Using simulated blood, the students combine blood samples and antisera, gently agitate the blood typing tray, and observe the results. No toothpicks, no stirring, and no waiting for results required. Kit contains enough materials for 10 groups. Teacher's Manual and Student Study Guide copymasters are included. Please note that the refill is NOT suitable for the old kit CL53530.

Refill kit for BI170500.

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

A useful aid when soldering, gluing, etc.

Deep insect net with telescopic aluminium handle and high quality mesh which is kind to delicate specimens. Suitable for use at all levels. Size of net: 720 x 300 mm dia. Extendable handle: 500-1000 mm.

For population counts and other measurements in the field. Consists of white plastic coated steel rods 500 mm long with markers at 250 mm which simply bolt together to form quadrat frame. Folds flat when not in use.

Solid square metal frame with 25 squares in total. Dimensions: 500 x 500 mm.

Superior quality plastic coated steel 100 squares. Dimensions: 500 x 500 mm.

The simplest and cheapest way to observe CO2 release! Ideal for individual student use. These respiration chambers can be part-filled with lime water or bicarbonate indicator solution, the organism or material to be tested placed in the top chamber and the carbon dioxide given off or expired can be observed by change in the solution. Observation is easy due to the transparency of the box. The apparatus consists of an external chamber with an internal sample holder which is perforated to allow the exchange of gases. This holder prevents contact between the sample and solution below. Dimensions (Diameter x H): 35 x 75mm.

Pressed steel blade on a 130 mm handle.

The broad opening of this soil sampler makes it easier to inspect the soil sample while it is still in the auger. Total length of the sampler is 63 cm long and it yields soil sample of approximately 49 cm in length with diameter of 22 mm. Made from electroplated steel.

For any number of easy instant pH checks on soil or compost in the laboratory or garden. Reads direct from soil or compost without sampling. Includes full instructions on adjusting pH to suit individual plants. pH readings for pH 3.5 to pH 9.0 instantly shown on the meter's display.

This meter ensures the right individual light and moisture conditions. Tests the moisture deep down where the roots are.

Provides quick indications of soil moisture pH and light conditions.

Set of six stainless steel nesting sieves in plastic frame. Complete with plastic lid and receiver. Mesh numbers 5, 10, 35, 60, 120, and 230.

This Hanna Soil test kit is ideal for testing and monitoring the quality of the soil. Tests include pH level, nitrogen, phosphorous and potassium. Easy to use a soil sample is mixed with water and combined with one of the chemical reagents supplied with the kit. The resulting solution is compared to the colour chart supplied to determine the concentration of the element being tested, which is indicated as low, medium or high traces (except pH, which is between pH4 and pH9, in 1pH increments). The kit comes with all the necessary components for 10 tests of each of the parameters or 25 tests 4 parameters.

Spirit filled thermometer in aluminium tube -10 to 110°C and 20 to 240°F. Length: 225 mm.

A lightweight angle and height measuring instrument. Point it at the top of building or tree, pull the trigger, and then read the angle on the protractor. Height is easy to calculate using the guide supplied

For survey field work. PVC covered wooden poles with solid steel points. Red and white graduated every 500 mm. Dimensions (L x Diameter): 2 metres 28 mm.

Simultaneously displays dissolved oxygen and temperature. Units of measure are saturation mg/L or ppm for dissolved oxygen and °C or °F for temperature. Advanced features include data hold 25 points memory auto power off automatic temperature compensation salinity and altitude compensation. Careful use and maintenance will provide years of reliable service. Easy to replace screw on membrane cap with optional extension cables. • Oxygen level displayed as Saturation or Concentration (mg/L [ppm]). • Adjustable Altitude Compensation (0 to 20,000 ft in 1,000 ft increments) • Adjustable Salinity Compensation from 0 to 50 ppt • Analogue bar graph indicates trends • Memory stores up to 25 data sets with DO and Temperature readings • Self calibration on power up • Data Hold, Auto power off, Low battery indicator • Waterproof to IP57 • Optional 1 m or 5 m extension cable • Complete with DO electrode, protective sensor cap, spare membrane cap, electrolyte and four 1.5 V batteries.

Detects Nitrate at 0, 10, 25, 50, 100, 250, 500 ppm. Supplied in vial of 50 strips.

A unique design feature gives direct reading of wind speed without the need to count revolutions. The low and high calibrations register m/s and the Beaufort scale. Can be hand held or fixed permanently.

A combined temperature and humidity meter ideal for environmental monitoring. The large LCD is easy to read at distance. Simultaneous display of humidity in RH and temperature in °C or °F; 63 x 80 mm large digit LCD; Min/max memory since last reset; Impact-resistant ABS case with desk stands and wall mounting; Supplied with battery. Dimensions (L x W x D): 138 x 95 x 20 mm. • Temp range: -10°C to +50°C • Humidity Range: 25% to 98% RH • Resolution: 0.1°C, 1% RH • Power: x 1.5V AA battery (supplied); • Weight: 143g

Though the use of blood type in forensic investigation is not enough to prove guilt, it may aid in exonerating potential suspect. In this activity, students act as lab technicians and assist investigators by examining evidence collected at crime scene. Students first use a presumptive blood test to determine if a substance on a stained piece of cloth may be blood, and then determine the blood type of a sample collected at the scene. Students then compare their results to those of samples provided from two suspects. Kit contains enough materials for 10 groups. Teacher's Manual and Student Study Guide copymasters are included. Kit includes: • 40 Blood typing trays • 10 Cotton swabs • 1 Cloth • 1 bottle 70% ethanol • 1 bottle Blood detection reagent #1 • 1 bottle Blood detection reagent #2 • 4 Simulated blood samples: Victim, Suspect #1, Suspect #2, Crime Scene Evidence • 1 bottle Simulated anti-A serum • 1 bottle Simulated anti-B serum • 1 bottle Simulated anti-Rh serum