Australia's Science Forum

Thank you Judy. At least I know I'm not going crazy. I also contacted the technical support team of the supplier and they were not at all helpful. The instructions on the Crookes tube indicate that a HVPS can be used to operate it. Will definately let you know if I find any further information to he...

I think any perfume would do.

Does anyone out there use a high voltage power supply in place of an induction coil to operate a crookes tube? If so is it just "plug and play" or is there some trick involved? I bought one and a new maltese cross but noone can get it to work. Power is getting to the unit and the low volta...

I'll be there too.
Tracey

Hi Sunray, I go past Seven Hills station on my way home if that is any help to Kim. Tracey

The quinine in tonic water makes it bitter. Tracey

I put sodium thiosulfate on the iodine and mix until there is no brown colour left then dispose of to sewer.
Tracey

We use 0.1M sulfuric acid

Me too please, Thanks Tracey. My E.mail is TRACEY.KING3@det.nsw.edu.au

Click on "label" then it's at the top of the list on the right hand side.

I have a booklet that may help you. If you would like a copy let me know your fax number and I will send it today. Tracey

Put a few drops of ammonia on a cotton ball in a container with the old litmus paper and it will be like new in no time.

Yes,I have a portable phone in 2 of my prep rooms.

Yes I have that problem with hydroxides too and have decided not to make up large amounts any more.

Hi MariaC,
I have the plans for our new labs and they have..CODE "DW" DESCRIPTION "Dish Washer (domestic type) SIZE "TBC". Hope all goes well for you. I also think the new storage system will take a bit of getting use to but at least it will be clean and easy to open!
Tracey

Hi Lisa, Sounds great could I please have a copy too? Hope I'm not to late. TRACEY.KING3@det.nsw.edu.au
Thanks

Just click on the little "thumbs up" icon and go from there

Could I please have a copy of the poster site too,when you have time.
TRACEY.KING3@det.nsw.edu.au

Thanks
Tracey

The list in the"manual for school assistants" is Lemons pH 1.7 Oranges 3.5 Beer 4.5 Lemonade 3.8 Fresh milk 6.0 Water 7.0 Eggs 7.5 Toothpaste 9.0 Bleach 11.5 Oven cleaner 12.5 Hope this helps. Tracey

I have a 2ml one and a 10ml one but I keep them for myself, noone knows I have them and I'm not telling. I love them they are so easy to use.
Tracey