Search found 174 matches

by Wayne
07 Aug 2023, 12:34
Forum: Chemistry and Labware - General
Topic: Year 10 DNA Pracs.
Replies: 24
Views: 9144

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: 1706

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: 1706

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: 6382

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: 6382

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: 6382

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: 3620

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: 18067

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: 18067

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: 2648

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: 1418

Re: Rocket Suppliers

Dynamic Science sells rocket kits.
by Wayne
17 Aug 2022, 14:46
Forum: Recipes and Pracs
Topic: Nail Biting
Replies: 19
Views: 2506

Re: Nail Biting

We often burn cheezels for the grade 8 energy prac. I have kept a box that has the use by date of 2010 and put the new packet in the old box and send into the classroom, no one wants to eat cheezels that are that far out of date!
by Wayne
10 Jun 2022, 12:12
Forum: Sourcing Materials & Eq Repairs
Topic: Chemical quality
Replies: 13
Views: 6662

Re: Chemical quality

Oh Sorry! I didn’t realise it was NSW only :whistling2: moving right along… apparently it has been bought out by Alpha Chemicals. Not the same Alpha Chemicals that were allegedly stealing from them, as per the letter that Silform sent around?! :? I only ever bought 2 chemicals from them and were lo...
by Wayne
10 Jun 2022, 08:39
Forum: Sourcing Materials & Eq Repairs
Topic: Chemical quality
Replies: 13
Views: 6662

Re: Chemical quality

Has Silform folded? tried getting to their website and it was saying it doesn't exist. This is being discussed today on the ASET mailing list. Are you on that? It's worth signing up. I've just sent an email asking if it's ok for me to post the ASET member's email content here. I didn't want to shar...
by Wayne
09 Jun 2022, 10:40
Forum: Chemistry and Labware - General
Topic: Hot Water Bath
Replies: 15
Views: 2626

Re: Hot Water Bath

Merilyn1 wrote: 08 Jun 2022, 07:49
Wayne wrote: 07 Jun 2022, 12:09 I've just ordered a Ratek water bath today with free shipping and a free lid. Now just need to wait for it to arrive.
I saw that offer Wayne. If only I had just waited...
It was perfect timing for me! :clap3:
by Wayne
09 Jun 2022, 10:38
Forum: Sourcing Materials & Eq Repairs
Topic: Chemical quality
Replies: 13
Views: 6662

Re: Chemical quality

Has Silform folded? tried getting to their website and it was saying it doesn't exist.
by Wayne
07 Jun 2022, 12:09
Forum: Chemistry and Labware - General
Topic: Hot Water Bath
Replies: 15
Views: 2626

Re: Hot Water Bath

I've just ordered a Ratek water bath today with free shipping and a free lid. Now just need to wait for it to arrive.
by Wayne
20 May 2022, 10:30
Forum: Chemistry and Labware - General
Topic: Hot Water Bath
Replies: 15
Views: 2626

Re: Hot Water Bath

Thank you for the recommendations everyone. I might try and get a Ratek one.
by Wayne
16 May 2022, 15:27
Forum: Chemistry and Labware - General
Topic: Hot Water Bath
Replies: 15
Views: 2626

Hot Water Bath

We are looking at getting some (or only one) more water baths. What do people recommend? We currently have one like the one in the attached photo.

Thanks in advance.
by Wayne
04 May 2022, 09:36
Forum: Announcements
Topic: Banning certain plastics in schools
Replies: 9
Views: 1760

Re: Banning certain plastics in schools

I agree Marama - I am sure we will find a way around it. I'm still using plastic straws only because there was nearly a full box of them here when I started four years ago. And I will struggle to find an alternative to clip lock bags (although this article doesn't mention them). As for the items we...