Australia's Science Forum

Dear Estelle,
I'm begining to think you need a secretary.
So just to give you some more work can I request a copy too please.
rosalie.breen@ntschools.net
Thanks so much, Rosalie(another one)

I have read about recipes for fake Poo and a mountant for hair micro slides. Now I don't want to appear too dumb but how do I go about getting a copy of some of your wonderful and helpful suggestions?
Rosalie (another one)

Great ideas from Trish. A few more thoughts quickly. Lots of storage space. Drawers, depth suitable for proposed contents, are more user friiendly than cupboards. I wanted sinks flush with benchtops, so you can clean bench easly, but didn't win that one. Powerpoints - think about placement design an...

Petunias are good as long they realise the five petals are fused. they grow easly and produce many flowers.
Lilies like Princess lily, are also big and clear for petals and stamens.
Complicated flowers or daisy flowers are unsuitable for beginners.
Rosalie (another one)

Thanks,and to Robb and Sue from a previous entry. I now have enough info to probably not filter the fresh one and not keep it too long. Or use paper if needed. It was great to get such quick replys.
Rosalie (another one)

I am making up a 0.02M solution of potassium permanganate. Instructions are dissolve by heating and then when cool filter through glass wool. We have no glass wool. Would ceramic wool be just as good , or can I use filter paper?
Rosalie (another one)

Hallo Noona, Reading entries in the forums I hear how helpful St Marys Conference is, so I have been wondering if/how I could attend. Now I know a bit. Do you send out information at some stage about registering etc? And could you add me to the mailing list please. Dates sound possible. Thanks Rosal...

Thanks Lada and Wendy. Though I will not be trying Wendy's note either.
Rosalie (another one)

In my store of "tricks' I have some little porcelain things called combustion boats. What are they used for? Or what can they be used for?
Thanks, Rosalie (another one)

Changing the subject slightly. I was interested in Loopy's photos of lab benches. These have the same sinks we have which I am not happy with because the lip is above the level of the bench, so that you can not wipe water from bench straight into sink. I consider this a design problem. Is it? Also g...

Thanks Lada and Smiley
I have recomended Aspro Clear to teachers.
Rosalie

Quest 2, textbook for year 8 has an experiment for exploring rate of reaction using chalk with hydrochloric acid. What do people use? Is the blackboard chalk used nowadays which is probably calcium sulphate rather than calcium carbonate OK. The idea is to think of grinding it to increase surface are...

Am i stupid or something, but why must you get a precipitate of silver sulphate? An experiment is to record what happened. Anyway text book Quest 4 says "Compounds containing the SO 4 ion are soluble except for Ba, Pb and Ca. Some compounds are slightly soluble. These include Ca(OH) 2 , PbCl 2 ...

Lead iodide removal
In Science World 10, Lead Iodide precipitate is heated in a test tube to release Iodine gas. Good! But the left over gunk in the bottom of test tube wants to stay there. Any suggestions to remove it?
Rosaliemb