Australia's Science Forum

Thanks Anna! I'll be adding the saline eye washer to the WHS budget list for this year.

Hi, I need some help. I've not prepared this prac before and I have no iodine solution made up. Do you use potassium iodine or straight iodine? And how concentrate?
I started making up a potassium iodine solution but it's clear??

How often should the safety showers be checked? We only have the little hand held eye washers so I change the water in those weekly.

Was it home brew carbonation drops?

Hi All,
Looking forward to this year. Some new science teachers and fingers crossed a new science block, at least started this year!!!
I'm going to say it .......... it has to be better than last year!!
Please save this message and remind me when it all goes to $#%T!

I'd love a copy as well, if it's still around.

Hi All,

Has anyone recently made sparklers? Wanting to know if we are allowed and a good recipe if we are??

There's an invisible ink that's easy to make for an at home experiment.
https://researchparent.com/color-changi ... sible-ink/
We use it in our murder mystery prac for Yr 7.

Thanks J and Labbie
Will ask for a timer if we ever get new labs/chem store room! For now I think I'll keep leaving it on. Save my lungs!

Happy Friday! Opening an old thread here but wanted to know if anyone knew of a standard for how long the extraction fan needs to be running in the chem store room? Our fan is piped into our flammable, corrosives and oxidisers cabinets as well as the room. I figured it was best to have it on 24/7 bu...

Thanks bigmack, I got the texta out and marked it on there. Will wait and see if there are any kids switched on enough to notice! I also put the electrodes in test tubes to protect them. They are a bit bent up but still shiny, attached and no rips in them. I had the voltage up on 12V. It took all da...

Thanks I'll give it a go. The ones in youtube videos always seem to crack along at pace. Ours makes a bubble about every 2 mins!

Hi hope everyone is safe and well after NSW school holidays.

Quick question - what do I add to the water to speed up electrolysis?

Not only questioning if the safety kid available but is it accessible??? Might be too busy in the safety shower!

Thanks Marama T. I do have assess to ScienceAssist but thought that if the info was all there on RiskAssess it would mean one less place to look.

Do you know if it will have details for chemicals generated in the prac or only the chemicals to be used??

Re-opening an old thread here.
Does anyone have an alternate for lighting the safety matches without the box??
The strike plates on the boxes are not lasting as long as needed so concerned that I'll end up with a whole bunch of matches and no boxes to light them on.

I wonder if an electric pencil sharpener would work if you had longer bits???