1mol.l-1 NaOH in lab Spatulas Filter funnels in lab Alison Blakey Here are the details you requested. The culture was obtained from CHR Hansen's Attn. Owen Scott P.O. Box 76 Hamilton. Ph (07) 838 0795 The contact Janet originally had was. Jenny Pollock c/- Nelson Girls' College P.O. Box 842 Nelson ph (03) 548 3104 Janet wonders whether an approach to a local cheese maker may be more appropriate? David Cook I found there is a cheese maker in Greenpark and they seem willing to help us out with some bacterial culture. Barbara Groves Try this place Carol Thank you everybody for the help and suggestions to find a cheese starter culture. I finally bought some from Artisan Cheese in Balclutha. - their web site is They sell a variety of accessories for making cheese ., Barbara Groves CHEMICAL DATA BOOKS I am lucky enough to have a recent version of the CRC Handbook also known as the Rubber Bible. David Cook Where can I get a copy? ! Erin We bought ours from Technical Books Riccarton about 3 years back. They may have changed name since. It had to be specially ordered in and cost almost $300 then. It was hard to find on the booksellers catalogues so I give a bit more information below. It is truly amazing and your Chemistry and Physics teachers will love having one available. CRC Press Taylor & Francis Group Boca Raton, London, New York ISBN 2007 version 13: 978-0-8493-0488-0 Hardcover. To all those who are interested in the book David mentioned, I've made inquiries, and below is the response I received. Dear Florinda The ISBN number you have given is for the 88th edition which is no longer available as it is out of print. The edition available is the 91st edition which was published on 14.07.10 ISBN 9781439820773. This costs £95.00. You can buy this book through the website or you can email your address and payment details through to us and we will process the order for you. Shipping costs are £4.99 by airmail (maximum 28 days for delivery) or courier (7-10 days) which costs £9.99
Suggestion: If you ask a specialist camera shop which does printing of pictures they may have paper. Also till slips fade in the sun - but that is the ink that fades. For fabric, try a drama workshop. I am thinking this may be something that could be used on stage. I would be interested to know what you come up with. Anita Walthew Maybe if you source some xray film? Try these Elizabeth Schubert PHOTOSYNTHESIS EXPTS Thanks for the photosynthesis experiment tips. Here's a summary; Elodea is still preferred but the cut stem of the Elodea sometimes traps the expanding oxygen bubble at the end of the stem, not allowing a steady flow of bubbles. Cut a few mm of the tip off under water. This often helps to get the bubble stream working. Also, add some sodium bicarbonate to each plant to provide carbon dioxide. They often tail off in oxygen production toward the end of a lesson, but a little sodium bicarbonate often starts them again. Students break off an end piece and then weight the growth end with a paper clip and place in a boiling tube weighted end down, cut end up. The tube is then filled with water (seeded with sodium bicarbonate) and placed at varying lengths away from a lamp. Students then count the number of bubbles that rise from the cut end of the weed over a specific time period. Jeanette Price Our biology teacher is looking to do this instead of the standard tungsten filament light with cellophane; I vaguely remember that LED lights do not work so well because of the lower energy levels any thoughts? Liz PIPETTES Hi All. I have a small problem with my pipettes; they are not draining properly, leaving droplets of solution behind inside the pipette when they are used. Is there something I can wash them in to make them drain properly again? Catriona Righton Have you tried rinsing the pipettes with meths or alcohol. Any remaining droplets should evaporate away. Helen Roper . PIPETTE FILLERS What does everyone use as a pipette pump? We have tried Dijis, pi pumps and the 3 way rubber pumps all without success in the classroom. The 3 ways that are in use at the moment are perishing as the students seem to be overfilling