Australia's Science Forum

What do they want it for?
I found this if it's of any help

we use nutrigrain, tiny teddies (tiny bears), rice crackers and barbeque shapes. It's kinda gross seeing them melt as oppose to burn because of the fat content!

yeah am going with potatoe, easyer to cube , no smell just better !

Thanks everyone. It's not needed till thursday next week so I will have a play and see what works best!

Hi Lyn,
I have the prac book sitting in front of me and it asks for H2O2 with pH of 3, m7 and 10 it must be a consitent typo because peroxide with a pH of 7 is going to be water isn't it and peroxide with a pH of 10 isn't going to be peroxide at all?

Hi all,
I have been asked for peroxide solutions with specific pH's. PH of 3, 7 and 10 I'm not sure how I am suppose to make these up of if the prac book the teacher is working from is confusing pH with concentration? It is for the liver enzyme prac for yr 12 Bio. Help!

maybe a tray of sand? or the long jump pit? that way you can smooth it over after every launch

No petty cash thats stupid!! HOw are you suppose to get hold of an onion for slid making or a banana for DNA extraction? Mail order and hope its not spoilt when it gets there?

Aircons and fans in everyroom here!

We had a few blocked ones (little darlings shovinf stuff in them)so we had a plumber come in a clean them out. I wouldn't have a clue how to go about cleaning them. I wipe the actual taps over with a damp cloth but thats all im prepared to do.

Our food tech teacher did this last week but with washed and unwashed hands, a clean chopping board swab and a kitchen sink swab. Here in the NT nothing is to be incubated above 27 degrees in schools according to out safety manual. We had growth after one night and you could see a difference , but t...

Yep sodium bicarb buffer will try attaching another power supply to the one thats runing and seeing if that helps. Thanks!

Hi Everyone!, a couple of my teachers want to do the electrophoresis prac this year and I tried it yesterday and am giving it another go today. I have followed all the instructions to the letter but it is just sooooooo slow.It took almost three hours yesterday to get a good result and it's been on f...

For future reference this site is pretty cool for demos for the litluns http://www.abc.net.au/science/surfingsc ... efault.htm

they are only as good as your microscope. we have two Premiere USB ones that plug into the computer which is plugged in to the team boards in the labs so whatever your loking at can be viewed by the whole class and you can take snap shots of your images and save to the computer. They where purchased...

Can you contact VWR and see where they stand on the issue. Does it have to be the manufactureres MSDS?. What about the chemgold MSDS's are they manufactureres ones?

You could always try the buffers this has come from "The Laboratory" by Barbara Dungy Ph range 3.0-6.2 citrate buffer prepare two aqueouse solutions of 0.1 M citric acid (19.21 g per litre) 0.1M sodium citrate (29.41 g per litre) to make appropriate buffer add solutions in quantities shown...

RosaliM I think this may be what you where referring to

Does you teaher want Buffer solutions or just solutions with a specific pH?

I found this , it uses other stains aswell as methylenen blue for this experiment. Lot's of different colour changes