Australia's Science Forum

I agree Ian, feeling very lazy here. Love your philosophy Julie :thumbup: One thing I like to do on a regular basis is make sure when all "kits" come back in that they are checked and put back into order so that they are right ready to go when needed next time. By this I mean light boxes, ...

Southern Biological also supply junket (code: MC23.85) 10gms for just under $10. Not sure if it appears in their current catalogue as it is a fairly new addition.

Cheers Trudy

We have a very old one "dancing mothballs" which uses baking soda and vinegar. Not sure if its suitable any more, may be alright as a demo? (Naphthalene ok for years 11 and 12)

Regards Trudy

Hi there, We also have a Data Harvest data logger and are very happy with it. They're very user friendly and the back up from Serrata has been very good. (I should qualify that with the fact that we are only 15 minutes drive from them however.) We had a problem with the battery not long after we fir...

Hi there, We have a litlle hot water cylinder in a cupboard under one of my prep. room sinks which sits at about 25 degrees. This does the job nicely, more than enough growth for the students and from a safety perspective you aren't encouraging human pathogens. They will still grow but you aren't se...

Haven't tried this but Congo Red can also be used for staining yeast. 1g congo red in 10ml ethanol, Make up to 100mls with distilled water - make fresh. Just in case you haven't got recipe for the methylene blue stain. Stock Solution = 1.5g methylene blue in 100ml 95% ethanol. Dilute stock 1:10 with...

If you want to buy/subscribe to the disc version do you do that via the website?

Hi Lisa

Serrata here in NSW have something that sounds like what you need. About $45. Just google their website.

Regards Trudy

We use ethanol or methylated spirits. Works pretty well. Just soak for a couple of hours prior to use or overnight if needed first thing.

lol , know what you mean. I do it manually as well, I'm sure you can hear the cogs ginding as I try to figure out the answer some times. The calculator site does look good though

I get mine from Fiegerts also Robyn. If you are going to pick up give them a call first though as they close early sometimes I think. Also you could try Westside Wholesalers at Bella Vista. Phone 96590699. Not sure if they are even there any more and it was slabs of dry ice not the pellets. You paid...

Sorry Liz, I think by your reply you took me the wrong way. If hes away its a bit hard, teachers are not always clear with their requests are they. It wastes alot of our precious time trying to track them down and we're not mind readers.
Good luck
Trudy

Would have done the same as you Barbara - a very handy little formular that one. Can I just suggest Liz that you go back to who ever asked you for this and check that they don't just want a straight 10% solution ie the old 10mls in 100mls etc. only because it makes quite a difference to the conc. th...

I've tried this a couple of times as well and only had limited success. Its very time consuming and I'm sure all in the way you hold your tongue at various points, there is a method in the book The Laboratory (available from Southern Biological- a must if you don't already own one) look under aceto-...

Southern Biological also now have Junket powder. Apparently two enterprising ladies who used to work for the "junket tablet" company have started their own little business supplying this.

Trudy

Thanks for the Risk Assessment template Rob. Much appreciated.

Regards Trudy

Ah yes Deputies you've got to love their dedication and attention to the important details. A few years ago when all of the OHS issues were first being raised we had alot more fire extinguishers installed around the school in the little bright red cabinets. They were painted beige to blend in better...

Just don't do what my grandmother did many years ago. She didn't understand the process of fermentation and wanted to make a sweet fruit wine so she decided all she needed to do was to just keep adding sugar!! The end product was variously described as rocket fuel, engine degreaser you get the pictu...

Oops Rob don't worry about first part of my post, was reading a very old thread

Thanks Trudy

Rob, could I also please trouble you for a copy. Fax 9634 6184 Many thanks. Just a question with regards to risk assessments? I write a risk assessment for every procedure that I carry out that warrants one and have MSDS available for all chemicals that we carry but I don't write any risk assessment...