Search found 155 matches

by AnnNos
20 Oct 2016, 08:27
Forum: Miscellaneous
Topic: Yabbies
Replies: 8
Views: 6423

Re: Yabbies

Yabbies are mostly vegetarian. I feed mine yabbie food, cooked beans, cooked peas, and other cooked vegetables - pumpkin, carrot, broccoli - but remove anything not eaten after 5 minutes. I also give a worm or piece of fine chicken slice once a week. They love to hide so have something they can shel...
by AnnNos
16 Sep 2016, 09:04
Forum: Announcements
Topic: GHS on Mini SDS
Replies: 4
Views: 2396

Re: GHS on Mini SDS

I put the mini for each chemical in with the experiment and they are used by the students to read the safety information on the chemicals they are using.
by AnnNos
08 Sep 2016, 08:37
Forum: Biology, Physics...
Topic: Induction Motor Experiment
Replies: 5
Views: 5043

Re: Induction Motor Experiment

Thanks bigmack
by AnnNos
07 Sep 2016, 12:41
Forum: Biology, Physics...
Topic: Induction Motor Experiment
Replies: 5
Views: 5043

Induction Motor Experiment

Does anyone have a physics experiment that demonstrates how an induction motor works?
by AnnNos
23 Aug 2016, 11:57
Forum: Recipes and Pracs
Topic: Open Day Ideas
Replies: 87
Views: 51074

Re: Open Day Ideas

I'd love a copy please ann.norsworthy@det.nsw.edu.au
by AnnNos
22 Jul 2016, 09:23
Forum: Safety with Chemicals
Topic: Chemical disposal
Replies: 3
Views: 2506

Re: Chemical disposal

I use sodium carbonate, stand to precipitate, then decant the solution and wrap the solid and bin it.
by AnnNos
06 Jun 2016, 14:48
Forum: Safety with Chemicals
Topic: GHS Labeling
Replies: 123
Views: 44990

Re: GHS Labeling

I thought it was WA and NT that hadn't signed up.
by AnnNos
02 Jun 2016, 11:54
Forum: Safety with Chemicals
Topic: Practical record keeping
Replies: 27
Views: 9787

Re: Practical record keeping

I was told during my chemistry TAFE course that the minimum legal requirement was to keep a diary with the experiments ordered. I buy a diary with Science funds each year and I write the teacher's name, the class and the equipment and chemicals, etc that have been ordered on the date it is being con...
by AnnNos
30 May 2016, 09:05
Forum: Biology, Physics...
Topic: Multimeters
Replies: 5
Views: 5184

Re: Multimeters

We use digital multimeters all the time. When the ammeter is not working it's usually because the fuse inside has blown. Just replace the fuse and all is OK again. I get a lot of use out of the batteries - only had to change them once in 5 years.
by AnnNos
19 May 2016, 08:44
Forum: Recipes and Pracs
Topic: Year 8 chemical changes
Replies: 6
Views: 4222

Re: Year 8 chemical changes

Mixing methylated spirits with water, soaking a handkerchief or cloth and then setting it alight. They are always amazed that the cloth doesn't burn.
by AnnNos
13 May 2016, 09:10
Forum: Safety with Chemicals
Topic: Another GHS question...
Replies: 30
Views: 11991

Re: Another GHS question...

I thought that the dangerous goods diamonds stayed (black outline) and the new GHS diamonds (red outline) were added.
by AnnNos
03 May 2016, 13:57
Forum: Safety with Chemicals
Topic: Chem store
Replies: 10
Views: 4727

Re: Placarding on Buildings

Our local fire brigade receive a copy of our chemical register and a map of the school with the stores marked so they know where the chemicals are stored and what is stored there.
by AnnNos
28 Apr 2016, 13:24
Forum: Sourcing Materials & Eq Repairs
Topic: Ball and Ring Set
Replies: 6
Views: 3341

Re: Ball and Ring Set

I had one stuck tight too. I heated the ring then put an ice cube on the ball. Released by the second cube.
by AnnNos
30 Mar 2016, 09:45
Forum: Biology, Physics...
Topic: beam balances.
Replies: 8
Views: 5340

Re: beam balances.

Ours are used every year for year 7 - Working as a Scientist and then they are used periodically throughout the year. We also use them for the year 9 practical assessment weighing tasks and have a digital balance at another station as well.
by AnnNos
29 Mar 2016, 12:39
Forum: Safety with Chemicals
Topic: Biuret Solution
Replies: 3
Views: 2165

Re: Biuret Solution

In the CSIS appendix B Biuret solution is orange dot - years 11-12. Toxic if ingested. Corrosive due to the presence of the sodium hydroxide (6M); avoid skin contact.

For junior school we use 0.1M copper sulfate and 1M sodium hydroxide - green dot.
by AnnNos
29 Mar 2016, 09:53
Forum: Safety with Chemicals
Topic: MSDS UPDATE
Replies: 3
Views: 2259

Re: MSDS UPDATE

SDS (was MSDS) have to be updated every 5 years.
by AnnNos
22 Mar 2016, 09:20
Forum: Chemistry and Labware - General
Topic: Glassware in labs?
Replies: 21
Views: 8289

Re: Glassware in labs?

I was just listening to Alan Smith on the DEC Webinar about the new CSIS package. He stated 'If you don't have perspex glassware to replace soda glass you are running a risk'

Does anyone have perspex test tubes that they use consistently?
by AnnNos
16 Mar 2016, 11:21
Forum: Safety with Chemicals
Topic: Bromine water
Replies: 22
Views: 10099

Re: Bromine water

Hi Labbie
Appendix B has bromine as a teacher only chemical and instructions on opening an ampoule (cool first). I still have 2 ampoules left and intended on using them up. Where does it say we are not allowed to have them any more?
by AnnNos
10 Mar 2016, 12:24
Forum: Safety with Chemicals
Topic: Is borax really a teacher only chemical?
Replies: 13
Views: 6589

Re: Is borax really a teacher only chemical?

I contacted Phillip Crisp about lead nitrate. RiskAssess has it as teacher use only for 0.1M. CSIS has it as years 7-12. He replied that CSIS is 17 years old and now out of date and RiskAssess is current knowledge. We still use RiskAssess to do our experiments but when something is different - like ...
by AnnNos
09 Mar 2016, 09:35
Forum: Safety with Chemicals
Topic: risk assess tips or tricks
Replies: 15
Views: 5853

Re: risk assess tips or tricks

I don't make changes to the teacher's risk assessment but if they have left off items - particularly minor equipment - then I add it using 'add review notes' so the next time someone wants to use the RA they can add these things in the right place.