Australia's Science Forum

Hi Wspa they are sealed sources and are used as is, the americium is what was used in the cloud chamber pracs for physics Yr12 which the teachers have just completed regarding the grey powder probably best to seal it in a container and mark 'unknown' ready for DET collection * whenever that happens?...

Hi Physics One I use Pyroneg ( not for all washing up) available through QStores, it's pink, very alkaline ( KOH) powder non sudsing use about 2 tblesp to a sink or tote tray - but must be thoroughly rinsed. It has been around for years from my days in pharmaceutical labs cleans really well and for ...

Hi
Does your state have any regulations regarding Animal use, especially by students. Hoax or not this would need to discussed before undertaken.
Regards Juliem

Hi JudyM
I can fax or photocopy the pages and send to you at the begining of next term, sorry it's after 2.00pm and getting ready to go
regards have a good holiday

Hi Newbie Shopping is a ‘negotiated area” which means talking to the HT and setting the limits Ref – Manual for school assistants working in science and DET duties for School Assistants Also a recent memo from the PSA can be found on-line re shopping I do some, if its is convenien...

You are right , it is a great idea for contact and exchange of information

Hi Triton X There were quite a number of specimens at this school when I started here, but the HT didn't see the need for any of them, so I disposed of them all. However if it was required to keep some and not the dodgy moldy ones, there is a process of incremental dilution of the formaldehyde with ...

Hi Triton X
The DET Job skills for school assistants working in science book has a basic set of rules on p16 in manual section
Julie

Hi Lis
I do the same as Mother - can purchase from QStores or Serrata, then it keeps well stored in the fridge
Julie

Volcano This experiment is better for displays than as a class prac as it's a nuisance to clean up. Beaker 1 - 400mls H2O add Red dye make it quite strongly coloured Beaker 2 - 4 Tlbsps of aluminium sulfate Beaker 3 - 400mls cold H2O in a 600ml beaker Beaker 4 - 4 Tlbsps of Bicarb Beaker 5 - 4 Tlbs...

Like Rob I have been involved with CSIS implementation and whole school inventory a VERY THANKLESS TASK, and one that should be supported and become aquainted by the staff in the relevant faculties There are people who can on contract come in and set up the inventory &/or complete this. If you a...

Hi David If in doubt check with Head teacher or come onto the Forum What is the store room layout like? Do you have a seperate vented Chemical storeroom, or is it a combined room for general equipment and chemicals ( this room should be vented with an extraction unit). Don't physically alter your Ac...

I prepared a booklet for the Yr12 chem teachers to give to their students as a resouce to use before some of the pracs they may do. This was a photocopy (2/A4 not B to B) of a section from the CSIS Appendix I 3.2 p 68 - 84 Acid / Base titration,Esterification, 2 types of seperation by seperating fun...

Katherine Please consider this advise it may not help your situation You should not be responsible for the entire schools inventory this is the role of the CSIS co-ordinator It is clearly stated in the CSIS package admittably this applies to the DET schools that the inventory is the responsibility o...

Used this method for years very successfully, handed down very gatefully from Lesly Lidsay formerly Plumpton HS Packs of 10 in rectangle take away containers - don't make them to long say max 50cm, have a very large label on lid stating 10 electrical leads I have returned them for use in the conditi...

EBT 0.5% in ethanol
refer
http://courses.cm.utexas.edu/pmccord/sp ... Wk4Lab.pdf water testing Yr12 Chem
this is an excellent PDF dealing with the prac and its methodology

Leave it to the students to cut to size, it is a skill and they could use a cake cutting method - use cotton thread held taught and this acts as a knife slicing easily through the gell

Very good advice from Lee at Dubbo, oxalic acid is a safer and effective treatment. The use of concentrated acid and heat to clean test tubes is a potentially risky method when weighed against the cost of test tubes, the value of your time or just retaining the rusty TT's for future similar use. Alw...

Could you consider horseshoe nails, they are not T shaped but are stainless steel, longer and flat with a moderately wide head. These are available at Lead Light suppliers or where classes are taught, also at farriers.

Before spending time cleaning; - thoroughly check the condition of the crucible in particular the underside for cracks or suspect damage. A firm tap on the "crack" will quickly identify the integrity of the crucible and save fracturing during future use. Cleaning is any of the above but wi...