Australia's Science Forum

Thanks guys. I was coming to the CO2 option in my own research and the ice sounds interesting.

Ellie

What is the best way to euthanase snails and worms for dissection?
Ellie
Lab Tech, Trinity Christian School

We use paddle pop sticks generally, or short lengths of cotton twine.

Ellie
Trinity Christian School

Hi guys, Ours are stored on a separate shelf in the chemical store, Known as the "metals shelf" . I have powdered metals in the NR dry chemicals alphabetically with the other chemicals and on the metals shelf are the turnings, filings, foils, in their metal group and sheets standing up at ...

Also try different oils. I can't remember exactly which ones off the top of my head but some vegatable cooking oils, and petroleum oils, grease etc fluoresce as does dishwashing detergent. Just pour a sample of the oil/detergent into a petri dish and place under UV light in a dark cupboard to see wh...

Since ammonium nitrate is no longer available I am looking at suitable alternatives in the pracs we do. Science World 10 2/e has a prac called "observing copper ions" p121 which uses electrolysis on copper mesh and copper strip in an ammomium nitrate/ammonia bath. The copper ions then form...

Similar to Lada's recipe Science World 10 (Stannard and Williamson) 2/e MacMillan gives a recipe for copper ore by mixing copper sulfate:sand: plaster of paris (calcium carbonate) in the ratio 1:1:2. I make it into an icecream container, stirring as it sets quickly. It is quite crumbly and easy to d...

Hi Fathryn Looks like you've drawn the short straw as have I. Our K-12 (1150 students) school chose to use the NSW DET CSIS package when it came in which made it a lot easier. My understanding of the federal legislation is that all hazardous subsatances on site require MSDSs, entry into the school r...

Hi guys and girls I too am finding this forum useful and interesting. Thank you to all who've set it up and contributed. I am also from a Med lab science background and even after 7 years in a K-12 school have my challenges. Hang in there guys. You do get a feel for things but I find that every year...