Search found 435 matches

by mtg
01 Apr 2025, 09:45
Forum: Miscellaneous
Topic: Bones
Replies: 17
Views: 2815

Re: Bones

This is seriously one of the best threads ever!!! I have lots of bones. But no human remains. I did have an appendix and a cartilage at one point, long since disposed of. I did collect skulls after a bush fire to go with my existing animal ones. We have porpoise bones and rabbit, from a kit all Vic ...
by mtg
01 Apr 2025, 09:37
Forum: Miscellaneous
Topic: 360 Survey
Replies: 6
Views: 2057

Re: 360 Survey

I got an email straight away and printed it off, just from Westlab. $25 discount.
by mtg
01 Apr 2025, 09:34
Forum: Chemistry and Labware - General
Topic: Extracting oils
Replies: 9
Views: 5620

Re: Extracting oils

Depends on your garden. You could bury it a bit. I chuck mine in our crappy area around gum trees, not in Summer though.
by mtg
11 Mar 2025, 09:33
Forum: Recipes and Pracs
Topic: Cutting Magnesium ribbon
Replies: 27
Views: 16742

Re: Cutting Magnesium ribbon

Ask Westlab
by mtg
10 Feb 2025, 11:08
Forum: Biology, Physics...
Topic: Making sterile agar plates
Replies: 12
Views: 8217

Re: Making sterile agar plates

I use a bit of boiling water to help dissolve the nutrient agar, add distilled water, put it into conical flasks, cotton wool plug, autoclave, (I use a pressure cooker), this kills everything. You do not have to sterilise anything. I use unopened bag of petri dishes. I wash the bench surfaces in a d...
by mtg
29 Jan 2025, 09:27
Forum: Announcements
Topic: Welcome 2025
Replies: 8
Views: 8033

Re: Welcome 2025

Welcome back everyone. I had a quiet one, animals and gardening duties. Baby chicks aplenty, vege patch and orchards looking better and alpacas shorn. I am taking time to have adventures on the days I don't work, while there are no crowds. Beach break booked. I have lots of new teachers and feel exh...
by mtg
19 Nov 2024, 10:55
Forum: Biology, Physics...
Topic: Maggot activity study for the forensics class
Replies: 16
Views: 13266

Re: Maggot activity study for the forensics class

I will use your pics. Many years ago I had a teacher set this up in the fume hood with left over heart dissections. She didn't tell me and back then the fumehood was at the back of a classroom. When she remembered it was abuzz. I bailed. Teacher had to do the clean. I have never done it since.
by mtg
19 Nov 2024, 09:31
Forum: Safety with Chemicals
Topic: organic solvents
Replies: 1
Views: 4178

organic solvents

organic solvents would include alcohols, esters, ethers, ethyl acetate, ethanol, acetone, benzene, and ketones. A work colleague's husband recently had a lung transplant due to lung disease caused from exposure to "organic solvents". Last year I had an unexpected lung cancer diagnosis and ...
by mtg
12 Nov 2024, 08:17
Forum: Sourcing Materials & Eq Repairs
Topic: Electronics Kits
Replies: 3
Views: 4915

Re: Electronics Kits

Wiltronics in Melbourne.
by mtg
04 Nov 2024, 08:49
Forum: Safety with Chemicals
Topic: phosphoric acid and methyl violet
Replies: 7
Views: 6703

Re: phosphoric acid and methyl violet

To get the NO2 I use a quick fit set up and put the tubing up through a beehive in a trough of water, I have the test tubes ready and wear full PPE and do it in the fume hood. Sometimes I used a gas jar and for another prac, gas syringes.
by mtg
04 Nov 2024, 08:45
Forum: Sourcing Materials & Eq Repairs
Topic: ammeters / voltmeters
Replies: 16
Views: 11331

Re: ammeters / voltmeters

Are multimeters any good as a substitute? They are so cheap. I have older meters and dread getting them out for junior classes.
by mtg
04 Nov 2024, 08:40
Forum: Sourcing Materials & Eq Repairs
Topic: Identifying rock samples
Replies: 10
Views: 7158

Re: Identifying rock samples

We just did a geology PD with our lab tech group in Gippsland, I will see if I can find the links we were given. It was from james.driscoll@monash.edu James was great and there are ID pages and lesson plans he was happy to send us.
by mtg
29 Oct 2024, 15:05
Forum: Safety with Chemicals
Topic: phosphoric acid and methyl violet
Replies: 7
Views: 6703

Re: phosphoric acid and methyl violet

There is 2 more parts to this prac. per student: 5 x 10-4M Fe(SCN)2+ solutions. and 2 x stoppered test tubes containing an NO2/N2O4 mixture. It's in my old Heinemann Chemistry TWO teachers resource book. We aren't running yr 12 chem atm so I don't have the current prac book. I remember it worked wel...
by mtg
21 Oct 2024, 12:07
Forum: Miscellaneous
Topic: Distillation flasks
Replies: 13
Views: 19161

Re: Distillation flasks

I use Westlab hoses for the distillation sets. The green silicon stuff. They are easier to detach.
by mtg
21 Oct 2024, 12:04
Forum: Recipes and Pracs
Topic: Hydrogen peroxide
Replies: 18
Views: 23366

Re: Hydrogen peroxide

I don't store 3 or 6% for long in dropping bottles anymore as the rubber teats blow up, but never burst. I decant the solutions into a screw top bottles and have never had a problem. Never huge amounts as I am a small school. The 35% is always stable and stored in 5.1. If anything it may become less...
by mtg
14 Oct 2024, 13:55
Forum: Miscellaneous
Topic: Distillation flasks
Replies: 13
Views: 19161

Re: Distillation flasks

Years ago I got new components made up from Haines, the size available was not compatible with all my existing quick fit. Mine are 24/29. Haines were very helpful. Expensive though. I have never had the need for 1000ml flasks but have had some donated from a research facility.
by mtg
09 Sep 2024, 10:45
Forum: Safety with Chemicals
Topic: Disposal of damaged lithium batteries
Replies: 12
Views: 8607

Re: Disposal of damaged lithium batteries

I had a Duracell AA explode, spat out the carbon rod. Aldi take old batteries, don't know about Lithium.
by mtg
09 Sep 2024, 10:30
Forum: Biology, Physics...
Topic: Dissection blocks
Replies: 21
Views: 17515

Re: Dissection blocks

What are people currently using for dissection trays? We have a heap of ice cream container lids but the bio teacher has requested actual dissection trays. Upon searching, I can only find the wax ones. I've never used those before. At my previous school we had shallow grey trays but I must be using...
by mtg
19 Aug 2024, 13:58
Forum: Miscellaneous
Topic: science week
Replies: 8
Views: 7241

Re: science week

Here it depends on the teachers. Some years we do staff morning tea with the current theme, quizzes etc and student lunch time activities. This year we only did the escape room through Stile.
by mtg
19 Aug 2024, 13:54
Forum: Safety with Chemicals
Topic: Radioactive sources -safe disposal
Replies: 8
Views: 7126

Re: Radioactive sources -safe disposal

The Cs-137 generator is actually really handy, I'd be surprised if you couldn't find another school in Tas to take it off your hands. It's a fast, simple, safe and clean way to show radiation decay in the classroom. I'd take it from you but we already have 2. I would ask your science teachers to co...