Disclosing Tablets for demonstrating the presence of plaque on teeth and gums. They stain plaque red. Colour is easily removed by brushing teeth.

• Supplied in a pack of 1 tablets

Bill of materials is available on request from techsupport@philipharris.co.uk

This highly detailed; 3 times life size representation of the human eye is a 6-part model which shows the structure of parts including the lens; cornea and retina. The eye structure fascinates and informs students and can make an excellent alternative to a real eye dissection.

• Dimensio...

Peak Flow Meters allow patients to monitor their asthma and Peak Expiratory Flow (PEF); a measurement of how fast a patient can blow out. When a patient is well their PEF is higher; when the airways are narrow (as in asthma) PEF is lower.

• Supplied complete with instructions for use; pa...

Four different types of UK soil supplied in A5 bags. Suitable for biology; separations; or forensic experiments.

• Teachers notes included
• Min weight 750g per soil

The soils are

• Clay
• Sandy
• Chalk
• Loam (clay loam and chalky loam)

This enlarged model flower allows students to study the floral and reproductive structure of a dicot. Petals; sepals and stamens are detachable. One anther has been sectioned to reveal the pollen within.

The stigma is shown with pollen grains attached; one of which has generated a pollen tu...

A well-chosen selection of nets; containers and viewers for any outdoor exploration.

The Environmental Investigations Kit includes:

• 10 x Graduated 3ml Disposable Pipettes
• 2 x White Polypropylene Collecting Trays (355mm x 255mm x 50mm)
• 5 x Hand Magnifiers (Magnific...

A kit comprising four lung bags; with holders (rubber bands) and mouthpieces designed for investigations into lung capacity. The bag is made of durable plastic and is silk screened with graduations up to six litres. Useful for comparing lung volume with height; age etc.

• Instructions ...

Handheld magnifiers with optical quality acrylic lenses for a crisp; clear image.

• Lens Diameter: 32mm
• Magnification: 5X
• Pack of 10

The amino acid structure of proteins can be determined by their hydrolysis and subsequent separation by chromatography. For this work; pure standards are essential and this set offers such standards.

• Supplied with teaching notes

The set contains 17 tubes of 1g each of the ...

The development and application of new industrial enzymes is a major growth area in biotechnology. The use of micro-organisms which secrete large quantities of enzymes has in most cases replaced the more expensive traditional sources. This kit gives students a fascinating insight into the use of ...

Please note that none of our enzymes are to be considered as being of Food Grade Standard and are not fit for human consumption.  They are only suitable for use in education.

Enzymes have found widespread use in industrial and analytical processes and the products of w...

This Build a Bioreactor Kit guides students through the design and manufacture of a bioreactor which can then be used to process milk or whey using an immobilised enzyme. The basis of the experiment is the hydrolysis of lactose found in milk. The reaction is monitored using diabetic urine testing...

Fungal Alpha Amylase - 50g

Please note that none of our enzymes are to be considered as being of Food Grade Standard and are not fit for human consumption.  They are only suitable for use in education.

• Working Concentration - 0.1 - 1%
• pH range - 3-6<...

Bacterial Amylase - 100ml

Please note that none of our enzymes are to be considered as being of Food Grade Standard and are not fit for human consumption.  They are only suitable for use in education.

• Working Concentration: 0.5 - 1%
• pH range: 4 - 8

Amylase Working Solution - 50ml

Please note that none of our enzymes are to be considered as being of Food Grade Standard and are not fit for human consumption.  They are only suitable for use in education.

• Working Concentration: 0.1 - 1%
• pH range: 3...

Cellulase - 2g

Please note that none of our enzymes are to be considered as being of Food Grade Standard and are not fit for human consumption.  They are only suitable for use in education.

• Working Concentration: 1%
• pH range: 5.5
• Temperature:...

Diastase (from Malt) - 100g

Please note that none of our enzymes are to be considered as being of Food Grade Standard and are not fit for human consumption.  They are only suitable for use in education.

• Working Concentration: 1 - 2%
• pH range: 3.5 - 5...

Immobilised Glucose Isomerase - 50g

Please note that none of our enzymes are to be considered as being of Food Grade Standard.  They are only suitable for use in education.

• Working Concentration: To be used neat
• pH range: 6.0 - 9
• Temperature ...

Invertase - 50ml

Please note that none of our enzymes are to be considered as being of Food Grade Standard and are not fit for human consumption.  They are only suitable for use in education.

• Working Concentration: 1 - 2 %
• pH range: 4 - 6.5
• T...

Invertase 'Bioinvert' 50mL

Please note that none of our enzymes are to be considered as being of Food Grade Standard and are not fit for human consumption.  They are only suitable for use in education.

• Working Concentration: 1 - 2 %
• pH range: 4 - 6