Australia's Science Forum

Thank you ..... the numbers of straws are dwindling in each set so I had better top up.

Hi All

I have been asked for capture/recapture prac. (We use 6 sets of straws for 6 groups of students.) What numbers/ratio do you use in your sets?

Rita

Renewing the membership at the moment for both LAZSTA (regional) and STANSW but was wondering if anyone ever used their membership for training, conferences etc??? Has membership been of value?

Rita

A belated Happy New Year to All

Does anyone or school have a membership with LAZSTA? Most information on website and Wiki relates to 2009 with little mention of following years. I would like to hear more of it if you can help.

Rita

Thank you

We are doing this prac tomorrow. (Liver and pH).
Are you using specific pH solutions only to add to the liver OR do you adjust the Hydrogen peroxide pH using specific pH solutions?
I have been asked for pH adjusted Hydrogen Peroxide.
Slightly confused. Maybe it's because it is Monday.

In the holidays after term 2 I had a teacher ask me what do I do when there is no-one around. I answered WORK! I have a list of tasks that I start preparing through the term (as they come up and I have a fair idea of how long those tasks will take). These tasks are the same as those in other posts. ...

Thank you so much

Hi All Just been asked to prepare junket prac -temp. Never used junket before. I have been asked for a junket solution, beakers, test tubes,thermometers, water baths and no method. Needed in half an hour. My question is for this prac "Should the junket solution be one tablet dissolved in 1 tbsp...

Teacher just did this prac with the old sheets with filings in them. (They were here before I came along.) They caught alight and and only a few charred pieces remain. I am so glad I found this post. Am now preparing to make the new wax sheets. Thank you.

Dragon Breath Equipment: Candle taped to the end of a metre stick matches spray bottle Chemicals: Make a mixture of 100 mL of ethanol, 15 mL of water and about 3 g of lithium chloride. Shake to dissolve as much lithium chloride as possible. To perform : Put about 50 mL of ethanol in the spray bottle...

Curious to know what you all do....
Do you add a few drops of 1% eosin to beaker of water with celery or do you place celery in 1% eosin only?
We have added the stain to the celery already in water and it seems to work OK.

Hi All
Have been trying to find the prac on spreading infections or diseases using test tubes and (I think) phenolphthalein. Can anyone help me find the right thread please?
Rita

I raced home at lunch and grabbed some powdered food dye. Tried mixing with acetone before adding to two litres oil and it changed colour. Thanks for the tips. Fingers crossed for last period.

We use it to track movement of ions. Prac works well.
I am fortunate we have a factory nearby who have given me a piece of their off-cuts.

Scrap metal places may help

Hi All I am going to show my ignorance here, where do I buy dyes that colour oil? It was mentioned about chocolate dyes? We have a prac this afternoon with coloured water, coloured saturated salt solution and coloured oil. I was thinking of leaving the oil the yellow it is (Coles Vegetable Oil). Tha...

A teacher has requested for our wish list to include: cat, dog, possum and pig skulls primarily to observe means of eating. I have found jaws for feline and canine (Mentone Educational Centre) but unable to track the possum and pig ones. These are for showing difference between carnivore, herbivore ...

What year group are you looking at?

Rita

Hi All I'm Baaack! Thanks to Virgin. Left Melb say 40mins later than planned. Long checkin queue but everyone cool calm and collected. Staff were terrific. Everything was quite orderly and I saw no sign of passenger anger or abusiveness. Thank you Victoria and Victorians for the good time I had ther...

I AM GOING!!!!!!! School approved my attendance but I pay for accommodation and travel...and it is all booked. My daughter is counting the days til she sees me and has already got the weekend organised......other reason for going. It will be good to see the differences and similarities between this ...