Search found 612 matches

by macca
25 Mar 2025, 08:35
Forum: Miscellaneous
Topic: Bones
Replies: 17
Views: 2801

Re: Bones

Years ago (pre 2005) we had a box of bones complete with skull, clearly human going on the teeth alone. Marked as prepared in India. The Nun at the time asked me to contact the funeral directors $$$$$ she suggest they could be put in with someone else. :crazy: They had been in the cupboard for years...
by macca
03 Mar 2025, 13:34
Forum: Sourcing Materials & Eq Repairs
Topic: Light Globe Holders
Replies: 7
Views: 7031

Re: Light Globe Holders

Hi Everyone

Looking around for good Light globe holders at a good price. Has anyone bought any lately or could recommend?

thanks
by macca
17 Feb 2025, 13:23
Forum: Biology, Physics...
Topic: Making sterile agar plates
Replies: 12
Views: 8196

Re: Making sterile agar plates

Different Question;

A bit of brain fog at the moment, are the bio kids allowed to grow mould then transfer to Nutrient Agar Plates?
by macca
04 Dec 2024, 13:27
Forum: Chemistry and Labware - General
Topic: how do you identify classroom glassware
Replies: 26
Views: 25589

Re: how do you identify classroom glassware

Do you like your plastic ones? What do you use when they are heating things? I was considering getting rid of our plastic ones and buying wood but I do like that i can put them through the dishwasher... [/quote] They are the heavy duty blue ones don't have a problem with them. Even with heated test ...
by macca
04 Dec 2024, 12:39
Forum: Chemistry and Labware - General
Topic: how do you identify classroom glassware
Replies: 26
Views: 25589

Re: how do you identify classroom glassware

I'm so lucky my prep. room is central to the labs, all glassware stays with me and goes out on the trolleys as requested for each prac., teachers get them to rinse free of chemicals before returning. If it's to be used for another class of it goes, after checking and topping up if need be. Through t...
by macca
23 Oct 2024, 14:05
Forum: Safety with Chemicals
Topic: Disposal of chemical solutions
Replies: 27
Views: 26735

Re: Disposal of chemical solutions

Hi

RiskAssess says it can go in the garbage.
by macca
25 Sep 2024, 08:59
Forum: Chemistry and Labware - General
Topic: Use of Borax in schools
Replies: 16
Views: 16861

Re: Use of Borax in schools

This is what Riskassess states. It's an ongoing problem here don't like it at all. So many alternative can be used sodium tetraborate, anhydrous(borax) Class:ncPG:noneUsers:Tch Training:1,2,5CAS: 1330-43-4 GHS data: DANGER Health hazard May damage fertility. May damage the unborn child Potential haz...
by macca
17 Sep 2024, 14:50
Forum: Miscellaneous
Topic: Distillation flasks
Replies: 13
Views: 19150

Re: Distillation flasks

Westlab have some distillation kits but EUD needed. Can't seem to find anything for spare parts either.

Just found Science supply have kit and larger flasks and some parts
by macca
19 Aug 2024, 13:52
Forum: Miscellaneous
Topic: Labelling
Replies: 10
Views: 13203

Re: Labelling

Hi Brains trust, I'm now job sharing, I'm looking at giving she and I a colour sticker each to put on Stock bottle, diluted and dropper bottles this is what I had in mind. New solution Date (8/24) Diluted from stock solution 8/24 D Decanted from Diluted stock solution 8/24 DD Please let me know what...
by macca
24 Jun 2024, 15:15
Forum: Recipes and Pracs
Topic: magnesium in burettes
Replies: 4
Views: 6152

Re: magnesium in burettes

I wouldn't be using HCl kids aren't allowed to use concentrated even if they are going to dilute it. 10M they are, why can't the use 1.0M 50mls it would still work and not be as dangerous. We also have the plastic burettes so I guess that would make it easier.
by macca
18 Jun 2024, 10:04
Forum: Chemistry and Labware - General
Topic: Cleaning Glassware Fast!
Replies: 35
Views: 23879

Re: Cleaning Glassware Fast!

For those who refuse to make up bromine water from scratch. (after a bad accident) Georgia Deretic who co-wrote Foschem Senior Chemistry gave me a substitute that works just as well and less dangerous. Bromine in Situ 100 mls 2m Sulfuric Acid 50 gms Potassium Bromide Dissolve Add drop by drop of Hyd...
by macca
07 May 2024, 10:23
Forum: Safety with Chemicals
Topic: mini SDS
Replies: 18
Views: 14378

Re: mini SDS

Same here I've only ever done Mini SDS in Science Lab and Main Office, we are audited internally and externally to often to count since 2001 and have never had a problem. When and if we do I'll look at full SDS. Was always told if there is a fire, you get out! the place is insured. Except for the od...
by macca
22 Mar 2024, 13:59
Forum: Jobs Forum
Topic: Jobs part time or full time or looking for work
Replies: 33
Views: 72572

Re: Jobs part time or full time or looking for work

Loopy wrote: 22 Mar 2024, 06:49 Wow macca! Good on ya! You have done a great job there and been a super help to everyone, especially me! You've earned it! Enjoy! :clap3: :clap3:
Thank you, let Charlie know I just couldn't out last her lol :crazy: he'll know what I mean
by macca
21 Mar 2024, 12:11
Forum: Jobs Forum
Topic: Jobs part time or full time or looking for work
Replies: 33
Views: 72572

Re: Jobs part time or full time or looking for work

Hi Everyone, I'm going part time after 29 years in the same place, if anyone is interested in a country change. I'm a little nervous after working full time my entire life, part time every school holidays when I was a teenager, it's time!! \:D/ :unsure: Following the link below https://teacherson.ne...
by macca
15 Mar 2024, 09:47
Forum: Sourcing Materials & Eq Repairs
Topic: Spring Balances
Replies: 14
Views: 20924

Re: Spring Balances

I'm glad it's not just me the decline over the last 20 years is scarey. Even the pracs I'm asked to prepare some days, I feel like a kindergarten assisstant. There needs to be boundies some not all teachers, "the need to be friends with the kids". Build a rapport yes! kids aren't stupid gi...
by macca
14 Mar 2024, 08:28
Forum: Sourcing Materials & Eq Repairs
Topic: Spring Balances
Replies: 14
Views: 20924

Re: Spring Balances

They've stretched the springs, so just going to throw out and replace. Some were old metal ones and old plastic, how you can't see when the kids are doing the wrong thing, I don't know.
by macca
13 Mar 2024, 08:56
Forum: Sourcing Materials & Eq Repairs
Topic: Spring Balances
Replies: 14
Views: 20924

Re: Spring Balances

Morning brains trust,

I've just had a Yr 7 class using the spring balances with 250 gm masses. They have been swinging them to measure angle. Well now most are broken any idea on how I could fix them, trying to get them apart is a nightmare. Or just replace.
by macca
11 Mar 2024, 08:40
Forum: Chemistry and Labware - General
Topic: Free elements sets for schools
Replies: 32
Views: 37421

Re: Free elements sets for schools

love ours, is a lot brighter in colour than the photo. Mounted on a black board.
by macca
07 Mar 2024, 12:44
Forum: Safety with Chemicals
Topic: Standard Operating Procedure (SOP) for removal of chemicals
Replies: 10
Views: 12152

Re: Standard Operating Procedure (SOP) for removal of chemicals

I haven't heard anything about Mercury being banned from schools? The old thermometers have been for years. We still have a sample inside a small glass container sealed inside another labeled container for viewing only kids are allowed to feel the total weight of the container. RiskAssess still has ...