Search found 183 matches

by Wayne
25 Sep 2024, 10:13
Forum: Chemistry and Labware - General
Topic: Use of Borax in schools
Replies: 15
Views: 1007

Re: Use of Borax in schools

And you can also buy slime made from sodium tetraborate from retail stores.
by Wayne
23 Sep 2024, 13:58
Forum: Miscellaneous
Topic: risk assessments for labbies
Replies: 6
Views: 352

Re: risk assessments for labbies

LabTechBrooke wrote: 23 Sep 2024, 13:51 No one double-checks what we normally sign anyway.
Until something goes wrong!

Last year we had a minor incident with vinegar getting in a students eye. I had to produce the signed riskassessment.
by Wayne
06 Sep 2024, 13:45
Forum: Biology, Physics...
Topic: Dissection blocks
Replies: 21
Views: 5804

Re: Dissection blocks

Thanks. I was looking to replace my current ones that can't go in a dishwasher (other than that nothing wrong with them and will be keeping them for other uses) and didn't want to get them and be no better off.
by Wayne
06 Sep 2024, 09:56
Forum: Biology, Physics...
Topic: Dissection blocks
Replies: 21
Views: 5804

Re: Dissection blocks

We had those Grey shallow trays at old school to Rosalie . Apparently they were Photographic development trays . I couldn't find the original ones for Love nor Money but I did find some Newer ones .They all had a small pourer on one corner . I thought they looked strange but the Bio teacher said it...
by Wayne
03 Sep 2024, 10:32
Forum: Safety with Chemicals
Topic: Radioactive sources -safe disposal
Replies: 8
Views: 1303

Re: Radioactive sources -safe disposal

Here is a presentation from the 2020 TALM Conference about radioactive sources and disposal in Tasmania. Might be helpful to you.
by Wayne
30 Aug 2024, 14:24
Forum: Chemistry and Labware - General
Topic: Lighting Bunsens
Replies: 9
Views: 6583

Re: Lighting Bunsens

To stop matches going down drain and many other things. Get a sink drain strainer thing for Bunnings and just a couple of drops of hot glue to hold it in place. Exactly what I did to every sink in Science. The GA and I got sick of fishing pens, pencils and other stuff out of them This makes me fell...
by Wayne
30 Aug 2024, 11:12
Forum: Biology, Physics...
Topic: Dissection blocks
Replies: 21
Views: 5804

Re: Dissection blocks

RosalieL wrote: 28 Aug 2024, 12:49 viewtopic.php?f=26&t=451/tech-tray-with-mat.html this one (if the link works)? How frequently do you need to replace the mats?
Says, "The requested topic does not exist"
by Wayne
02 Aug 2024, 10:39
Forum: Recipes and Pracs
Topic: Methyl Orange Indicator
Replies: 12
Views: 6222

Re: Methyl Orange Indicator

Phenolphthalein seems to be the standard when titrating. It is worth noting though taht the colour change isn't at neutral either with phenolphthalein.
Phenolphthalein Indicator.png
by Wayne
02 Jul 2024, 10:29
Forum: Recipes and Pracs
Topic: Biurets reagent
Replies: 7
Views: 4140

Re: Biurets reagent

AS you can buy Biuret Reagent from science suppliers, I'm sure it is perfectly fine to send to the classroom mixed together.
by Wayne
07 Aug 2023, 12:34
Forum: Chemistry and Labware - General
Topic: Year 10 DNA Pracs.
Replies: 26
Views: 19522

Re: Year 10 DNA Pracs.

I've attached what we do. It is a bit more intensive than the zip lock bag method, but it eliminates the use of bags which is good for the environment.
by Wayne
05 Jul 2023, 13:56
Forum: Chemistry and Labware - General
Topic: A suitable demo?
Replies: 10
Views: 7953

Re: A suitable demo?

Thank you for the replies. I have passed the info on.
by Wayne
28 Jun 2023, 10:41
Forum: Chemistry and Labware - General
Topic: A suitable demo?
Replies: 10
Views: 7953

A suitable demo?

I have been asked to post this on here by another school. The following is the procedure that was put on Riskassess by the teacher requesting the prac. It is to be a teacher demo. 1. Add a third to half of a teaspoon of solid CuCl2 to a medium beaker (250 mL). 2. Add approximately 5 mL of ethanol an...
by Wayne
06 Jun 2023, 15:13
Forum: Biology, Physics...
Topic: Disposal of used agar plates
Replies: 33
Views: 23075

Re: Disposal of used agar plates

Southern Biological sell them (they have them named as autoclaves).
by Wayne
06 Jun 2023, 10:15
Forum: Biology, Physics...
Topic: Disposal of used agar plates
Replies: 33
Views: 23075

Re: Disposal of used agar plates

Also from Science Assist, Laboratory pressure cookers must contain a pressure gauge, a control and pressure relief valve and be able to reach a pressure of 15psi (103kPa) and a temperature of 121°C. These sterilisers can be purchased from biological suppliers however costs vary and schools need to s...
by Wayne
06 Jun 2023, 10:12
Forum: Biology, Physics...
Topic: Disposal of used agar plates
Replies: 33
Views: 23075

Re: Disposal of used agar plates

Taken from Science Assist, Microwave ovens Microwave ovens are not a suitable alternative to an autoclave or laboratory pressure cooker as they do not provide moist heat in the form of steam under pressure and therefore, will not sterilise. Microwaves penetrate unevenly and there can be ‘hot spots’ ...
by Wayne
30 May 2023, 13:28
Forum: Recipes and Pracs
Topic: Alternative to film canisters for rockets?
Replies: 8
Views: 8786

Re: Alternative to film canisters for rockets?

Science Supply Australia and Omega Scientific both sell film canisters as well. A bit more expensive, but might work out for you.
by Wayne
21 Mar 2023, 13:23
Forum: Miscellaneous
Topic: Ordering for Practical Lessons
Replies: 50
Views: 34088

Re: Ordering for Practical Lessons

I just set mine for 1 day notice, to see how it goes. I haven't told anyone about it
by Wayne
20 Mar 2023, 10:20
Forum: Miscellaneous
Topic: Ordering for Practical Lessons
Replies: 50
Views: 34088

Re: Ordering for Practical Lessons

As for teachers checking CSIS - it seems rough that Labbie says the labbie was responsible for checking this. You would think that checking the rating on the chemical would be part of the teacher's risk assessment?? I totally agree Merilyn. The teachers are the ones in charge of the class doing the...
by Wayne
01 Mar 2023, 12:52
Forum: Safety with Chemicals
Topic: Environmental friendly Disposable Gloves?
Replies: 20
Views: 12007

Re: Environmental friendly Disposable Gloves?

When you check their website it says;
"Do not send in medical waste, this includes material contaminated with blood or bodily fluids. Other types of protective gear like hair nets, ear plugs, and lab coats or garments are not accepted in this box."
by Wayne
27 Oct 2022, 14:20
Forum: Sourcing Materials & Eq Repairs
Topic: Rocket Suppliers
Replies: 5
Views: 6253

Re: Rocket Suppliers

Dynamic Science sells rocket kits.