Australia's Science Forum

Yep! Even our mob, take our annual wage and say you only work 30hrs/week so we will deduct 25% then you only work 40 weeks / year so will deduct another 20% then because we are such a caring employer we will divide that by 26 so we can pay you the same amount every fortnight, so we are working for h...

Don't buy a bench meter, Get a data logger and probe, much more versatile

Hey Barb
I got aloan of Dewar and 10L of liquid Nitrogen from all states ag services at rutherford ( 4932 0489 ) for$40 last year, they will also deliver and pick up empty dewar for an extra charge

I agree with you Smiley!
The price of toluene against the cost of test tube, They are disposable
We do a prac. each year heating copper carbonate and reducing it to copper oxide, I put out my cheapest TT's and if they don't immediatly wash clean they go in bin.
But I love your sense of humour!

The only problem I have is when purchasing 20L drum of ethanol I have to quote a licence No since our head teacher many years ago jumped through the hoops.
So if you go there once you will be clear for all future orders, I know they are fussy who they sell ammonium nitrate to now.

I have noticed that if I go into the organic store for more than a minute or two, I get a headache, I just try to limit time in there

The beauty of conical flasks is they just sit there on top of hotplate Get two flasks add about 50 ml of chicken broth ( preferred home made no preservatives) fit straight tube through stopper then fit air lock or s tube to the other bring both to boil this kills any bugs then store for a couple of ...

Try Serrata or Jaycar Yes they have limits to stop idiots from aiming at the eyes of pilots trying to land jumbo jets But I think the school would be exempt this but maybe you don't need stronger for Tyndall experiment etc. as you don't want to cause blindness in any students that happen to look int...

We have one that has been in the school for about 20 years but could not be hard to make, if you have no luck! I will draw up and fax you

Long grain does it for me[img][/img]
then if you want bitmore slosh some boiling water on cooked rice rinse and you have more[img][/img]

I don't know what you lot are using when mixing starch if you put in hot water goes into cluggy ball have to put in cold water first then heat. But I had some failures one time, since then taken small handfull of rice, boil this gives over a litre of rice water "starch solution" and it nev...

Hey Pam
When I make mine, I keep it in the Fridge, it has very short shelf life.
It comes off as gas out of solution and should have reddish tinge to yellow

Hey Jazz
Did you create that risk assessment sheet or is on some website?
How do I get access? as I wanted to create a reciepe data base and that would be re-inventing the wheel if this is out there

If you need sheets in a hurry, Go to stationary supplier and ask for blotting papper.
The people who use rubber stamps often use this after stamping or go to art suppliers and get water colour paper, the artists doing watercolour soak paper first then paint on the wet paper,It's all the same stuff

I don't believe in putting any chemicals in tank only plenty of fresh clean water.
To eliminate chlorine I add water on fine spray with such vast surface area the water gives off all it's chlorine

My daughter and partner have split after 12 years and wants to come home!
Her bedroom has held all our "treasures" (junk) and craft gear has to be cleaned out and in the middle of getting a new kitchen installed Ahhhhhhhh!

Do we get to fill in survey without principal or head of science seeing our report, or vetting our feedback! do you know?
We are in the process of going for new award, and they believe we have no skills and can be replaced by a volunteer mother at any time.

I've been caught out, wanting Iron ll Nitrate for a prac exam
I looked closer and only have Iron lll Nitrate on the shelf.
Can I through some nitric acid in and a couple of nails, like I do with Sulfate.
Or any suggestions

Need some more info
What are you trying to demonstrate
if you want to explain switching or light up globes A.C. is OK
Also heating effect should be alright but you need AC meters to measure values

Before I learnt about the nail trick, I use to acidify it also Then teachers complained because they didn't get the desired reaction and quized me to find out if I had made fresh! When I told them about acidifying, they blamed me for the bad results. So after some research, I found out about the nai...