Australia's Science Forum

Hi all, Can anyone assess my geiger counter. Tube popped one time when teacher was using it, and we have a replacement. Now when we turned on using the new geiger tube, the counter is emitting a burning odor.I contacted an equipment repairer and he said he does not check geiger counter because he do...

Hi, don't forget to always wear mask to avoid inhaling biological and chemical substances. long term effects of these are not good to the health.Also wear disposable gloves.I spray my incubator with anti-bacterial spray (any brand will do) and deodoriser then just wipe the sides and dividers with pa...

Again, thank you so much for all suggestions. Will try which ones work quickly.

Have a great week ahead!

Hi Labbies,
Can anyone suggest a good cleaning solution for test tubes with stain from corrosion pracs?

Thanks a lot.
Cheers,
Ana

If your school is registered to Chemwatch, you can do your Chemstore manifest from there. It's good because you can update and save data.

Cheers,
Ana

Hi all,
Does anyone know of any upcoming chemical safety course within NSW?Please let me know, thank you.

I agree with everyone, our work is unique and specialised so not just anyone can do it. This should justify that we get higher pay than usual! I can have someone with limited experience and i'm willing to teach her/him.

Ana

Hi Merilyn, I usually do not get sick really (thank God) and ifever I do I only take a day off . Even if I do not feel 100% I try to go back to work as i only have 10-12 sick days for the whole year. It's just that this June, I will be away for 5 days (3June, 8 June and 29&30June, 1 july)for som...

My Science coordinator is looking for a replacement during my sick days or days when I am on inservice. This is not on a regular basis, just when I am away on certain days. If anyone is interested, please send her an email: chiquita.mathieu@mmcwakeley.catholic.edu.au Our school is Mary MacKillop Col...

I make NA plates like Amanda, ordered from Southern Biological or Science Supply Australia.It's cheaper and easy, although I had some problems with condensation as pouring temp for agar is at least 45C otherwise it solidifies. What's the technique for minimising this condensate?

Cheers,
Ana

Hi Rosalie
thank you for your advise about the "calculator" website, I had a chance to browse and try it, it's just amazing! Highly recommended to all.
regards,
Ana

Thank you Dino for the solution. When you can, please show me how you calculated this amount?

Ana

Hi smart labbies, can anyone please help me with this recipe:
I need to prepare 1 lit.of 0.1M ammonia solution from 18% ammonia (this is what is available in my lab). Your inputs will be highly appreciated.

Cheers,
Ana

We use freshly prepared Lugol's Iodine solution, doesn't work if the solution is light or oxidised.

Cheers,
Ana

Our microscopes are due for servicing and we have some equipments for repairs. can anyone please suggest which person/company to contact within NSW with the best price? I had a quote from Priv-ed, it's a bit expensive for our budget.
Thanks.
Ana

I had the same problem with burning magneium in crucibles. Tried soaking in nitric acid and scrubbed with steel scrubber but some still have some marks on them.

Ana

Thanks belinda for donating some of your books! :D I agree with you macca, these companies are making a fortune, they actually changed just a bit of the content and face out the older edition!We tried to have the year 9 load the CDs but our coordinator still wanted them to get the books and she said...

hi all, Anyone who has spare Science focus 1 (first ed) 30 copies and Science Focus 3 (first ed) 15 copies, if you would like to sell or lease, we are interested as we are short for yr 7 and 9 classes. We ordered these books from a supplier but they run out of the first ed so we got the second ed wh...

Thank you for the replies, such a big help, really appreciate it. I suggested to a teacher to use different chemicals such as biuret reagent (10% NaOH and 0.5% copper sulfate) and benedicts for protein and glucose test instead of testape and albustix ,but he's not agreeable as these are for seniors ...

Hi all,
Has anyone done basic food test (from Science Focus 2) prac for yr 8? I just want to know where to buy the materials such as testape, albustix paper and vit C solution. Thanks.

Ana