Search found 206 matches

by ELIZABETH
12 Oct 2020, 10:31
Forum: Chemistry and Labware - General
Topic: vernier go direct sensors feedback
Replies: 3
Views: 136

Re: vernier go direct sensors feedback

We have a couple (with many more on my wishlist) and are very happy with them; they're easy to use and the app is straight-forward.
Liz
by ELIZABETH
20 Aug 2020, 13:09
Forum: Chemistry and Labware - General
Topic: Microbiology
Replies: 9
Views: 2133

Re: Microbiology

That would be a HUGE thumbs down from me!!
by ELIZABETH
20 May 2020, 10:45
Forum: Chemistry and Labware - General
Topic: Microbiology
Replies: 9
Views: 2133

Re: Microbiology

It's the same as it's always been....why would it be different now?
We only sample fomites or water and the plates are not opened after incubation.
Cheers
by ELIZABETH
12 Mar 2020, 11:53
Forum: Safety with Chemicals
Topic: Chemical waste bottles
Replies: 22
Views: 6701

Re: Chemical waste bottles

I try to limit the use of metals by encouraging mico-chemistry (I'm not always successful!) and we we don't use any lead salts at all; I recently banned potassium permanganate because it's so hard to dispose of. I don't put anything down the sink and discourage students from doing so (again, not alw...
by ELIZABETH
06 Mar 2020, 09:34
Forum: Sourcing Materials & Eq Repairs
Topic: End User Declaration
Replies: 28
Views: 9076

Re: End User Declaration

I just spoke to the principal about this and she signed on the spot.
(Helps that she's a science teacher, I think).
Cheers
by ELIZABETH
04 Feb 2020, 11:26
Forum: Chemistry and Labware - General
Topic: Magnets
Replies: 9
Views: 3757

Re: Magnets

Yes, Shelley, I've bought those and their neodymium magnets; both are good quality and value.
by ELIZABETH
03 Feb 2020, 10:44
Forum: Chemistry and Labware - General
Topic: Magnets
Replies: 9
Views: 3757

Re: Magnets

I've bought from AMF and the magnets are great.....and their customer service is excellent!
Liz
by ELIZABETH
23 Oct 2019, 08:58
Forum: Chemistry and Labware - General
Topic: nitrogen dioxide & dinitrogen tetroxide
Replies: 14
Views: 6344

Re: nitrogen dioxide & dinitrogen tetroxide

Re: nitrogen dioxide & dinitrogen tetroxide Post by Loopy » Fri Oct 19, 2018 9:55 am Hi all, I got 1 pair of NO2/N2O4 tubes for equilibrium from a place in WA. In 2014 they cost $134 + freight. The tubes are about 14cm long. Am I allowed to post the company's information for this specialist item? Or...
by ELIZABETH
26 Jun 2019, 12:30
Forum: The Polling Booth
Topic: Chemical Disposal
Replies: 2
Views: 9642

Re: Chemical Disposal

This resource from Science Assist is invaluable!
Also, welcome to labbie land!!
https://assist.asta.edu.au/sites/assist ... ition3.pdf
by ELIZABETH
28 May 2019, 15:38
Forum: Recipes and Pracs
Topic: Foods prac - protein
Replies: 7
Views: 3591

Re: Foods prac - protein

Another way is to strain yoghurt through muslin and collect the whey. I do it at home so I can eat the resulting curd....make good labne!
by ELIZABETH
28 May 2019, 13:47
Forum: Recipes and Pracs
Topic: Foods prac - protein
Replies: 7
Views: 3591

Re: Foods prac - protein

Gelatine?
by ELIZABETH
04 Apr 2019, 08:31
Forum: Sourcing Materials & Eq Repairs
Topic: Sodium Fluoride
Replies: 7
Views: 3234

Re: Sodium Fluoride

Investigating an Equilibrium Reaction.docx


Here's the one we did for that topic - worked well and no fluoride.
by ELIZABETH
03 Apr 2019, 12:24
Forum: Sourcing Materials & Eq Repairs
Topic: Sodium Fluoride
Replies: 7
Views: 3234

Re: Sodium Fluoride

RiskAssess has the solid as Yr11/12 but solutions as Yr 7-12.
I think it was part of a prac in the old chem curriculum??
by ELIZABETH
29 Mar 2019, 09:41
Forum: Recipes and Pracs
Topic: Growing green crystals?
Replies: 5
Views: 3823

Re: Growing green crystals?

You could try Mohrs salt?
https://www.youtube.com/watch?v=RDeIUroQ4Eo
Cheers
by ELIZABETH
28 Mar 2019, 08:20
Forum: Chemistry and Labware - General
Topic: Balances
Replies: 3
Views: 3202

Re: Balances

Those look amazing! What are the dimensions? Could you fit a tiny beaker on the weighing pan?
Liz