Australia's Science Forum

Hi All, Just wondering what shoes people find are suitable for the job. I need to get orthotics so I am also looking at buying a new pair of shoes specifically for wearing at work. I know we should be wearing all leather fully enclosed shoes, does anyone have something they would recommend to look a...

Hi All

Any ideas for removing naphthalene from boiling tubes??

Thanks

Lorrae

Hi Robyn

Thanks for your help I think I've convinced the teacher to have a change of plan.
I told him we didn't have them.

Lorrae

Help!!

I need to make 0.5g/l of these silver salts:

Silver Carbonate
Silver sulfate
Silver Chloride

We only have silver nitrate, How do I do this??

Thanks in advance

Lorrae

Hi All,

I have no idea what it looks like but it isn't the hodson kits. We have those .
Any other ideas??

Lorrae

Hi Everybody,

Our Physics teacher wants a MOTOR EFFECT KIT.

Does anybody know where we can get one??

Grateful for any help!!

Lorrae

Hi All, Please let us know how the experiment works. The soaked filter paper idea is how they test for antibiotic sensitivity in pathology labs. They apply little discs infused with the antibiotic to a plate flooded with the known bacterial solution. Once incubated they look for the cleared zone aro...

PS.


See forum cleaning porcelain crucibles 14th june 2006.

Dear Chsc I posed exactly the same question last year and someone replied that in the scheme of things crucibles are almost considered as disposable items so is it really worth your time and effort to clean them? Not sure this helps but it certainly changed my perspective on this pesky problem. I bo...

Dear Michpull Do you melt the chocolate and put the lollies in that?? What do the kids use to do their mining?? Another interesting prac for earth science is the mining of chocolate chips out of chocolate chip biscuits ! The kids get an amount of "money" out of which the have to buy their ...

Kimmy

What do you make these solutions up in?? Volumetric flasks or measuring cylinders??
If you are doing serial dilutions like this what happens to the accuracy or doesn't it matter??

Lorrae

Hi I like to mix the starch with enough of the water to make a smooth solution. Stir to get all the lumps out. I then add this to the rest of the water and bring this to the boil stirring constantly either with a stirring rod or a magnetic stirrer. This has always (Touch wood) worked for me. I think...

Hi All,

I have a container of red phosphorus that has absorbed so much moisture that it is now more a paste than a liquid.

Any ideas on how to go about dying it out? Our HOD suggested putting it in an incubator. I'm just a bit cautious about doing this.

Thanks Lorrae

Thanks to those who replied.
It worked a treat.



Lorrae

Hi All,

Time to pick your brains again.

I have about 300ml of Conc. HCl I need to dispose of. What is the best way to do this??

Thanks in Antcipation
Lorrae

Hi Judy, I'm glad you came up with a solution. Now can you help me?? Where to you get the nitrile gloves ?? If they are fairly cheap are thay lined with anything?? I've been using rubber gloves that I buy from the supermarket, they are great for washing up and I use them for everything but perhaps I...

I know you checked Q stores, but I had a quick look and they do have a Neoprene/rubber latex blend glove. Is this of any use??

Q Stores 2006 catalogue Page 253 .
If you do find another supplier can you lets us know?

Lorrae

Hi all,

I have spome commercially prepared 0.1% Bromothymol Blue that is no longer blue. I have read somewhere that you can add something to fix the colour but I can't remember what!! Or doesn't the colour matter??
Help!!
Any ideas??

Thanks

Lorrae

Hi Cheltie

Gum Arabic is also used as an additive for paint when doing calligraphy. I know it is expensive but you may be able to buy a small amount from specialised paper/ink suppliers.

Hope this helps

Lorrae

Hi Lis

It just so happens I received a letter from Geological Specimen Supplies today. They may be able to help you.

Contact Phone Number is : (02) 94888162


Lorrae