Contents: instruction sheet syringes (x 15) Bijou bottles (x 75) filters (14 colours/shades) hydrogencarbonate indicator, 250 cm3 (dilute x 10 for use in experiments) sodium alginate (sufficient to make 200 cm3) Scenedesmus quadricauda (1 bottle) enrichment medium (sufficient to produce 2 litres of algal suspension) The kit is priced at £30 plus £7.50 towards the cost of postage and packing.

The kit uses algae immobilised in sodium alginate/calcium chloride mixtures and is based upon work undertaken by Debbie Eldridge from King Ecgbert School (Sheffield) while working on a SAPS/Robinson College Schoolteacher Fellowship. The kit can be used at a variety of levels in the secondary curriculum and is well-suited to investigative and project work. (For example see Photosynthesis... using algae wrapped in jelly balls).

Further information and orders, please contact National Centre for Biotechnology Education, Science and Technology Centre, Earley Gate, The University of Reading, Whiteknights, READING, RG6 6BZ, UK. Phone 01189 873 743.

Read a review of this kit published by SSERC