For demonstrating the presence of plaque on teeth and gums. Stains plaque red. Colour easily removed by brushing teeth. Supplied in a pack of 20.

Four different types of UK soil. Supplied in A5 bags. The soils are clay, sandy, chalk, loam (clay loam and chalky loam). Suitable for biology, separations, or forensic experiments.

Teachers notes included. Min weight 750g per soil.

This enlarged model 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 tube wh...

A well-chosen selection of nets, containers and viewers for any outdoor exploration. Kit includes:

• 10 x 20mL containers

• 10 x pipettes

• 2 x White polypropylene trays 355 x 255 x 50mm.

• 20 x petri dishes 90mm

•�...

A kit comprising four lung bags, with holders 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 included.

Rennet (Rennilase) 50mL

Working Concentration - 0.05 - 0.1%

pH range - 5.5 - 6.5

Temperature range - 30 - 50°C

Substrate - Fresh milk

Product - Caseinogen forms casein

Source - Fungal, Rhizmucor miehei

Trypsin 25g

Working Concentration - 0.1 - 1%

pH range - 5 - 10.5

Temperature range - 20 - 65°C

Substrate - Protein solutions

Product - Peptides and AA's

Source - Porcine pancreas

It’s good pr...

A qualitative determination of glucose in urine.

These test strips have been specifically designed for urine testing. In practice they have been adopted for educational use because of their simplicity and convenience.

Just dip a strip into a test solution and wait a short whil...

Protein (mainly albumen) in urine testing strips.

These test strips have been specifically designed for urine testing. In practice they have been adopted for educational use because of their simplicity and convenience.

Just dip a strip into a test solution and wait a short whi...

Nutrient agar powder for preparation of medium. Coliur: Blue. Used for investigating fermentation.

28g of powder required to make up 1 litre of medium.

All slides are pre-washed with a 45 degree grounded edges.

• Size: 76 x 26mm

• Thickness: 1.0 - 1.2mm

• Plain

• 2 x packs of 50 Slides

These Mini DNA Molecular Kits provide an easy to understand introduction to DNA structure. Comprises abstract shaped, colour coded parts to represent the nitrogenous bases, pentagonal sugar and pyramidal phosphate component parts present in the DNA double helix.

Each component is d...

Lightweight magnifier with two plano-convex lenses. The lens mount folds into case.

• 10X magnification

• Dimensions: 15 x 25mm

Bumper pack of 4 different types of seed for germination.

Contains:

• 250g Sunflower

• 100g Cress

• 500g Mung Bean

• 500g Broad Bean

Measures children from the time they can stand up straight to adulthood (maximum height 2.05m). Comes in its own box for easy storage and transportation.

30 assorted packets of seeds for growing your own fruit and vegetables.

A semi-transparent, flexible, thermoplastic film with 2-way stretch. Non-toxic, offering good resistance to acids, alkalis and some organic solvents. Will stretch 200% and adhere to irregular shapes and surfaces to provide a secure seal. 100mm x 38m.

This is the traditional compound microscope with a modern finish. It is an LED microscope intended for the more demanding user.

Full Specification:

• Total magnification: 40x, 100x, 400x

• Eyepiece: Wide Field 10x/18mm

• Head&...

Give your plants a helping hand with our high quality propagators. The lightweight crystal clear cover has adjustable ventilation making it easy to control the airflow to young plants. The gravel base tray holds a selection of pots in this specially designed growing space.

The Micro slide viewer is cost effective and gives the students a quality image. No power requirement and very light weight. Magnification 50x.

Monocular microscope with magnification of 400x. Built in LED illuminator.

Full Specification:

Total magnification: 40x, 100x, 400x

Eyepiece: Wide Field 10x/18mm

Head: monocular, 360° rotating, with 45°inclined.

Nosepiece: Triple r...

Cover Glasses 18x18mm 0.13-0.16mm

Stainless steel. Blunt tip Forceps, 110mm length. EACH

The Flexview Digital Microscope allows students to view live images on screen. Connection to computer via USB standard port. Includes a flexible neck holder stand with gridded observation board.

• Duo focal point of 60x and 250x on a 17 inch monitor

• Focus to...

All slides are pre-washed with a 45 degree grounded edges.

• Size: 76 x 26mm

• Thickness: 1.0 - 1.2mm

• Single Cavity

• Pack of 50

Cover Glasses 18x18mm 0.09-0.13mm

Cover Glasses 22 X 22mm 0.13-0.16mm

The National Counter Terrorism Security Office seeks to restrict the supply of certain chemicals. Philip Harris have a duty to control the supply for these chemicals and any private individual attempting to purchase these chemicals may have their details passed to the police in their area.

The National Counter Terrorism Security Office seeks to restrict the supply of certain chemicals. Philip Harris have a duty to control the supply for these chemicals and any private individual attempting to purchase these chemicals may have their details passed to the police in their area.

The National Counter Terrorism Security Office seeks to restrict the supply of certain chemicals. Philip Harris have a duty to control the supply for these chemicals and any private individual attempting to purchase these chemicals may have their details passed to the police in their area.

Rennet Rennilase Food Grade 25ml