Search found 1042 matches

by smiley
03 Jun 2014, 12:09
Forum: Miscellaneous
Topic: Goodbye
Replies: 8
Views: 3997

Re: Goodbye

Goodbye, good luck, and enjoy. :thumbup: :D
by smiley
03 Jun 2014, 12:08
Forum: Safety with Chemicals
Topic: Mercurochrome
Replies: 9
Views: 8212

Re: Mercurochrome

I can remember painting red "smileys" on kids' knees with it! Interestingly, a quick trip around Mr G. Oogle shows that it was removed as a precautionary against mercury poisoning, rather than in a response to any recorded episodes. I also found this : http://ispub.com/IJS/21/2/5354 which ...
by smiley
03 Jun 2014, 10:45
Forum: Miscellaneous
Topic: New Science Lab?
Replies: 12
Views: 5483

Re: New Science Lab?

Prep Room notes Positives: I have both a compactus and two Gratnells systems, with 3 trolleys to match, which I love love love :wub: I have two cupboard/workbench stations which are 2 cupboards (back to back) wide, and three double cupboards long, with smaller cupboards above, suspended from the cei...
by smiley
29 May 2014, 14:03
Forum: Recipes and Pracs
Topic: Rare - Earth Magnets
Replies: 4
Views: 2714

Re: Rare - Earth Magnets

Didn't we do this somewhere else?

I place the two magnets against the edge of a bench (one with squared edges), so that one magnets is resting on the bench and the other over the edge (on thin air). Then I push down on the one in the air and they separate :thumbup:
by smiley
23 May 2014, 14:18
Forum: Biology, Physics...
Topic: Silicon Wafer
Replies: 4
Views: 2773

Re: Silicon Wafer

Just south of San Francisco maybe?? :cheesy:
by smiley
23 May 2014, 14:15
Forum: Recipes and Pracs
Topic: reactivity of metals
Replies: 5
Views: 2897

Re: reactivity of metals

Sounds like a Youtube opportunity! Less clean up too! :wink2:
by smiley
12 May 2014, 12:42
Forum: Chemistry and Labware - General
Topic: Smoke Alarms
Replies: 8
Views: 4139

Re: Smoke Alarms

The school has smoke alarms in other classrooms - always useful for if a piece of electrical equipment is quietly overheating whilst unobserved - but NOT in the Science labs for obvious reasons. We have set them off when kids used sparklers in a General Classroom, rather than a lab. Made me laugh AN...
by smiley
01 May 2014, 09:11
Forum: Safety with Chemicals
Topic: Risk Assessments
Replies: 10
Views: 4088

Re: Risk Assessments

Said this somewhere before but I love it!!! Now we subscribe to Student Risk Assess too. It means that kids doing EEI's can assess their own risks, and it gives them something to print out and hold. RiskAssess stores the RA's you have created, although I always hit "save" and have created ...
by smiley
29 Apr 2014, 15:43
Forum: Sourcing Materials & Eq Repairs
Topic: Wave Model
Replies: 5
Views: 2859

Re: Wave Model

Think I got mine from Scientrific - about $120. Pretty good, shows waves in 3D. Needs a shot of WD40 every so often, especially up here.
by smiley
28 Mar 2014, 14:20
Forum: Chemistry and Labware - General
Topic: Kinetic Theory in Action - NaHSO3
Replies: 3
Views: 2241

Re: Kinetic Theory in Action - NaHSO3

We also do a really cool experiment with a gas tube, overhead acetate and pH paper. I cut a very long skinny strip of acetate, that fits into a gas tube or, even better, a gas tube or burette that has a broken end. Then I cut little slashes into the acetate at regular intervals, so that I could weav...
by smiley
28 Mar 2014, 12:39
Forum: Chemistry and Labware - General
Topic: Kinetic Theory in Action - NaHSO3
Replies: 3
Views: 2241

Re: Kinetic Theory in Action - NaHSO3

Annette,

What's the prac? What do they want you to do with that?
by smiley
28 Mar 2014, 11:07
Forum: Chemistry and Labware - General
Topic: Cleaning Copper pieces
Replies: 12
Views: 5152

Re: Cleaning Copper pieces

Coke & alfoil. Soak them in coke and leave for a while. Rub with foil, then rinse. :thumbup:
by smiley
27 Mar 2014, 13:22
Forum: Recipes and Pracs
Topic: Yeast culture
Replies: 5
Views: 2993

Re: Yeast culture

I've used ordinary Baker's yeast & a bit of sugar. Leave for a bit, until you can see that it's frothy, then drop some on some slides.

The trick is to clean the flask (or whatever container) very thoroughly with boiling water or sodium metabisulphite so that the yeast doesn't die.
by smiley
27 Mar 2014, 11:55
Forum: Recipes and Pracs
Topic: Yeast culture
Replies: 5
Views: 2993

Re: Yeast culture

What are you going to do with your yeast culture?
by smiley
25 Mar 2014, 09:19
Forum: Recipes and Pracs
Topic: melting of lead
Replies: 6
Views: 3923

Re: melting of lead

Hey Jazz, It took me a while to track down chapter and verse, but here it is: The National Standard for Control of Inorganic Lead at Work refers to "melting lead at less than 450 degrees" in Schedule II, and in 12.1 "any work that exposes a person to lead fumes" it say "the ...
by smiley
24 Mar 2014, 12:43
Forum: Miscellaneous
Topic: home loan protection
Replies: 25
Views: 8894

Re: home loan protection

Well, having just been on 12 months of income protection, check with your Super mob first. Very often you will already be insured for income protection through them, and sometimes additional income protection is an unnecessary add-on, depending on the amount of cover that you can get from your Super...
by smiley
21 Mar 2014, 09:11
Forum: Miscellaneous
Topic: Licenses for keeping frogs in QLD
Replies: 3
Views: 2667

Re: Licenses for keeping frogs in QLD

Why don't you check with Deb at the Frog Hospital? Seriously, she should know.
by smiley
19 Mar 2014, 12:43
Forum: Chemistry and Labware - General
Topic: Year 10 DNA Pracs.
Replies: 24
Views: 12091

Re: Year 10 DNA Pracs.

Hey guys, I just put together this fantastic DNA prac using gel electrophoresis, and the dyes from Southern Bio. Fairly cheap, using wow factor equipment, and (since I wrote the prac sheet) also funny and scandalous - as all good paternity pracs are. I've only included the front page and a photo of ...
by smiley
19 Mar 2014, 12:30
Forum: Recipes and Pracs
Topic: melting of lead
Replies: 6
Views: 3923

Re: melting of lead

Short answer (impolite) - "Hell no!" Slightly longer answer (polite) - "well....no you may not." Explanation: What folks do on their own time in their own airspace is NOT your business, but no-one may create lead vapour in your airspace and on your time BECAUSE it's not allowed a...