Australia's Science Forum

Technician Acknowledgement Day - Technowledgement Day or week

Vernier has a Sound Level Sensor that is a simple, easily-operated sensor to measure and investigate sound levels in classroom environments but it is not a gate. You can purchase a 'Noise Gate' but I don't think it is used with Data Loggers.

I purchased the blue based ones. If they fall over and the sleeve plastic is not right at the top the measuring cylinder breaks fairly readily. They are not strong glass and I wouldn't buy them again.

My last Haines order came in 2 weeks. The only time they were late before this was when there were items on back order.

I missed last year and was looking forward to this year. The conference was such a great networking opportunity and the knowledge and ideas learnt were second to none. Thank you for your organisation and hard work.

I do propanol - alphabetically in the flammable cupboard-1 then 2 and agar - normal then nutrient - in the inert chemicals.

Froth Flotation Sets measuring cylinder, sand, red lead, water, kerosene, tight fitting rubber stopper, electrical tape to seal the measuring cylinder. Mix 2 cms sand and 1 teaspoon of red lead and put into the measuring cylinder. add water carefully up to the 80 mL mark put about 2 cm of kerosene o...

Looks like an old froth flotation experiment. If it is then it is red lead.

We've got the Hot Wheels toy radar gun that they use in Physics. I don't know how precise it is but it's good enough for producing a speed for a student running or a passing car so they can do their equations. I imagine that as it is a toy it will be safe.

You need a SDS for everything you buy in. If you buy in 1M HCl then you need the SDS. If you make it up yourself from concentrated HCl then you don't. Same with bromine water.

Just as a side issue - don't they use potassium permanganate at the beach to show where rips are?

Are you sure it was PVA - polyvinyl acetate- glue and not PVA - polyvinyl alcohol - which is a clear liquid we have used to slime?

You should know that because TAFE courses are soooo expensive Science Assistants don't have to do any courses now. This was from the WHS consultant. All training is on-the-job with Head Teacher and using CSIS. I've decided that the first course I want to do for my PDP is one on mind-reading or ESP. ...

I agree Labbie. I follow CSIS and do stock items that I purchase in. If I buy bromine water then I stocktake this. If I make it up from ampoules then only the ampoules are done.

We use them for differences in temperatures of different surfaces outside - concrete, timber, metal, etc. We don't use them inside very much.

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...

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.

Thanks bigmack

Does anyone have a physics experiment that demonstrates how an induction motor works?

I'd love a copy please ann.norsworthy@det.nsw.edu.au