Search found 1171 matches

by Merilyn1
06 Feb 2024, 14:04
Forum: Recipes and Pracs
Topic: colour change when heated
Replies: 7
Views: 2702

Re: colour change when heated

elaruu wrote: 06 Feb 2024, 12:26
Marama T wrote: 06 Feb 2024, 10:36 Zinc oxide changes colour at around 8000 degrees Celsius, so if you can get that organised I'd be most impressed.
Hahaha!! Sorry, I didn't google any further than that it changes colour :crazy:
Well, we have had some hot weather lately :giggle:
by Merilyn1
31 Jan 2024, 06:57
Forum: The Polling Booth
Topic: Do you use a diary?
Replies: 6
Views: 8570

Re: Do you use a diary?

I love my diary. We use Riskassess for ordering pracs, but for my personal organisation, I would be lost without my own diary. I have two roles (Science and WHS) so it is really easy to forget things. I've found some organiser diaries that have a week on one page and on the opposite a page for makin...
by Merilyn1
31 Jan 2024, 06:38
Forum: Recipes and Pracs
Topic: making cell models
Replies: 10
Views: 5636

Re: making cell models

Never tried it but I'd imagine it would taste pretty bad even with all the lollies floating in it. I used to make jelly for my son when he was a little tacker using fruit juice and gelatine. Maybe you could try cordial or something like that if it works out cheaper. Fill the kids up on sugar then se...
by Merilyn1
27 Nov 2023, 10:54
Forum: Biology, Physics...
Topic: Disposal of used agar plates
Replies: 33
Views: 18583

Re: Disposal of used agar plates

Google the brand name. Most companies have their user manuals on line. Or, share the brand name here and someone else may have the same one.
by Merilyn1
23 Nov 2023, 06:48
Forum: Miscellaneous
Topic: Attachment - how to add
Replies: 2
Views: 8219

Re: Attachment - how to add

Thanks for this Bigmack. I've only had a chance to look at those instructions today and it explains why I have never attached a photo! Maybe my future will be different :)
by Merilyn1
21 Nov 2023, 06:41
Forum: Biology, Physics...
Topic: testing for microbes
Replies: 4
Views: 5348

Re: testing for microbes

Fair call, Rosalie. There was a lot of discussion quite a few years ago about students not being allowed to swab anything and having to grow peppercorn broth or something weird. It was a misinterpretation of CSIS which advised against sub-culturing anything growing on agar plates. However, I think S...
by Merilyn1
16 Nov 2023, 06:39
Forum: Safety with Chemicals
Topic: nickel sulfate
Replies: 11
Views: 13842

Re: nickel sulfate

We go by RiskAssess as well. CSIS hasn't been updated for decades, the Dept must be waiting for a legal case before they start?? It's bound to happen, one day, sadly. Had to laugh at this, but it isn't really a laughing matter! I went to a general WHS course run by AIS and, can you believe, they sa...
by Merilyn1
14 Nov 2023, 14:03
Forum: Safety with Chemicals
Topic: nickel sulfate
Replies: 11
Views: 13842

Re: nickel sulfate

ELIZABETH wrote: 14 Nov 2023, 12:19 I'd go with RiskAssess.....CSIS is jut too outdated and I'm glad I don't have to use it!
Agree completely!
by Merilyn1
08 Nov 2023, 07:35
Forum: Chemistry and Labware - General
Topic: Free elements sets for schools
Replies: 30
Views: 18758

Re: Free elements sets for schools

Apologies is I sound slightly cranky, but after loading and labelling ca. 60K samples, and assembling 1600 sets across two rounds of sets (including the last bit I need to do over summer), most of it personally, it does start to annoy me when I have to wade through more than 1000 orders currently o...
by Merilyn1
06 Nov 2023, 12:01
Forum: Chemistry and Labware - General
Topic: Free elements sets for schools
Replies: 30
Views: 18758

Re: Free elements sets for schools

Thank you Stuart. They are really clever and already popular. I was on leave when they arrived. Haven't had much time to look at them and was certainly unaware of the website! So, thank you for the extra information.

Love your work :)
by Merilyn1
06 Nov 2023, 07:32
Forum: Chemistry and Labware - General
Topic: Free elements sets for schools
Replies: 30
Views: 18758

Re: Free elements sets for schools

Of course, I'm not sure how they glued the elements set!
Watch this space...
by Merilyn1
03 Nov 2023, 14:41
Forum: Chemistry and Labware - General
Topic: McCartney Bottles
Replies: 2
Views: 4251

Re: McCartney Bottles

Just a thought - is the top the same size as a dropper bottle? You can buy caps for the dropper bottles.
by Merilyn1
03 Nov 2023, 07:43
Forum: Chemistry and Labware - General
Topic: Free elements sets for schools
Replies: 30
Views: 18758

Re: Free elements sets for schools

I did have a thought afterwards. We put some mercury switches into these containers - tiny amount of mercury (so tiny, I couldn't really see the point). I decided to glue the lids shut and I had the casual use a really small dot of superglue to do so. That was twelve months ago and they are still fi...
by Merilyn1
02 Nov 2023, 09:07
Forum: Chemistry and Labware - General
Topic: Free elements sets for schools
Replies: 30
Views: 18758

Re: Free elements sets for schools

We have them set up in the display cabinet (all glass) similar to above with the teachers notes standing next to them, they are in the classroom so accessible for students and teachers. I do find them out during Yr 10 science. Make sure you glue the lids on..... and DONT use Super Glue it makes the...
by Merilyn1
02 Nov 2023, 07:34
Forum: Chemistry and Labware - General
Topic: Free elements sets for schools
Replies: 30
Views: 18758

Re: Free elements sets for schools

My coordinator got hold of these whilst I was on leave. Very neat.
Now trying to work out the best way to display/store them. Have you had any thoughts, Anna?
by Merilyn1
31 Oct 2023, 14:11
Forum: Biology, Physics...
Topic: microscopes
Replies: 2
Views: 4355

Re: microscopes

Seems that the repair people give Motics a good wrap. After lots of umming and ahhing, not being able to actually see one of these models, I have taken the leap and ordered some.

But thanks for the reinforcement of my decision!
by Merilyn1
27 Oct 2023, 14:27
Forum: Recipes and Pracs
Topic: split pea DNA
Replies: 16
Views: 17750

Re: split pea DNA

Animal based?? Oh yuk, not the liver. Got to love teachers and their "ideas"!
by Merilyn1
27 Oct 2023, 12:10
Forum: Recipes and Pracs
Topic: split pea DNA
Replies: 16
Views: 17750

Re: split pea DNA

I run with the idea that the senior students don't remember what they did in junior years. Once had a Bio class insist they had never used microscopes before! We just stick with strawberries. I buy frozen ones so they are on hand. We often do this prac out of strawberry season and the frozen ones ar...
by Merilyn1
24 Oct 2023, 14:31
Forum: Biology, Physics...
Topic: microscopes
Replies: 2
Views: 4355

microscopes

I'm looking to buy some new senior microscopes and have been quoted (among others) for Motic BA-80 microscopes. Just wondered if anyone had these and your thoughts. Also, as I'm in Tahmoor, is there anyone around Campbelltown or Southern Highlands that has these that I could have a look at? Apprecia...
by Merilyn1
20 Oct 2023, 13:01
Forum: Chemistry and Labware - General
Topic: Safety data sheets
Replies: 10
Views: 8455

Re: Safety data sheets

That's a good idea. Highlight the first aid and maybe the spill procedures. Invest in some Post-it Flags to indicate those pages. Good time to remind the teacher that they should be referring to the SDS when preparing their risk assessment for the prac, ie reading the SDS before they use the product...