Australia's Science Forum

Re: a post I put up yesterday about sheets with coloured discs for the rates of photosynthesis prac........the idea actually came from a local Adelaide labbie in our lab manager's association, Gail from Seaford High, so she's the angel with the nifty idea! :clap3: Anyway, I made up a couple of sheet...

Does anyone have an alternative to the rates of photosynthesis prac using hole-punched leaf discs & bicarb solution?

I'd like to try something different....we've been doing the leaf discs for years.

Cheers,

Kiah

Sheesh!!
The most dangerous thing I have to deal with (apart from teachers of course ) is the occasional magpie swooping in summer!

Be careful Estelle.

Kiah

Hi Lisa, I vaguely remember sending the slideshow, but try asking me what I did last week let alone at the start of the year! :blush2: :crazy: :blush2: I'm just happy it's something people can use. I tried to find microbiology resources without much luck, then a few years ago when one class produced...

Thanks for the help & recipes everyone! :clap3: I had time to do a bit of googling this morning (takes time to trawl through though :banghead2: ) & found a couple of sites with simple yoghurt instructions too. http://www.landlearn.net.au/curriculum/classroom_activities/making_yoghurt.htm &am...

Hi everyone, I had a look through old posts here but couldn't find quite the right thing......so I'm hoping someone can help.......does anyone do yoghurt or cheese making experiments? I'm looking for something simple that we can do with our junior science classes, years 5 & 6, so it needs to be ...

Hi Pat, here's a very late reply to your 2007 message! I saw your post while looking for an answer to something else.......I put together a doc a few years ago to help the kids identify bacteria by phenotype, by taking photos of plates from one class & labelling the photos. I printed & lamin...

Hi Louise, your message is from May so I don't know if this is helpful anymore......but I stumbled across your post while searching for another recipe so I thought I'd respond anyway. We do an anaerobic respiration prac using yeast & glucose solutions. I've attached a copy of the method & eq...

Welcome Sammy! You'll get quickly addicted to Chemtalk.......& you'll find all kinds of resources & support. I only joined in May this year, but I've learned a lot.......& laughed a lot too! :cheesy: It's strange but somehow comforting that us labbies seem to share similar 'quirky' :craz...

We had to submit budget requests or 3 years in a row (patience is a virtue right? :wink2: ) to get money for a dishwasher, but it was worth the wait. We got a Miele Professional G7804 & bought inserts to hold test tubes, flasks, measuring cylinders etc. It wasn't cheap, $7,300 in 2005 + $750 for...

Try the cutting compound used on car paintwork......on a renovation show years ago they used it on a stained & scratched up old stainless steel sink, & it came up beautifully. I haven't tried it myself yet, but I kep meaning to use it on a couple of sinks that have black stains from acids. I...

Like Rosalie, I have become a control freak over matches. I do it a little differently from her. I actually put about 8 matches in each box. That's generous! :wink2: I put 4 matches in each box. Usually they come back with a couple still in there. I don't know why, but when they got full boxes it w...

Hi Estelle, can you please email me the RAs too? [-o< kkrassay@pembroke.sa.edu.au I bet you didn't see the flood of emails coming.....& I know it takes time to reply to all of us.....but we appreciate it a HUGE amount! :wub: Good resources are hard to find, so thank you for sharing :clap3: :wub:...

Anyway was thinking can we substitute gelatine or something for plates for junior classes????? For cost saving. [-o< Or if anyone knows how to buy agar powder cheap.Let us know your secret :giggle: Trish. ps. just searched google and some mention guar gum or xanthan gum any one tried these substitu...

I make up 2L icecream tubs of the stuff. I cut each tub into 6 pieces & give a piece to each prac group. To make 4L of phelphthalein NaOH agar (2 x 2L icream containers) In a conical flask, pour 250mL of water, add 10 g of NaOH granules & stir till dissolved. Leave aside to cool. Pour 1600mL...

Some people just don't take it seriously do they? We had an evac drill a week ago, & it was drizzling with rain at the time. I have to clear my building of people then report, & as I was heading to the assembly area on the oval afterwards, I came across 3 groups of students AND STAFF huddlin...

Morning everyone, :coffee: when your school/campus does an emergency evacuation, what happens, & once everyone's at the assembly area, do you do a roll call of classes/home room groups to tick off all the kids, or do you have appointed staff clear rooms & buildings as they evacuate & tha...

Uuuumm.......confession time......since my post about the capsicum prac it only just occurred to me that capsicum is not warm blooded & therefore the enzyme function will be just fine at cold temperatures. Massive D'oh!!
Serious case of brain cramp today I think!

Hi everyone, :clap3: thanks to the legendary Sassi's enzyme prac using capsicum I can officially say our labs won't stink of liver ever again! \:D/ They'll stink of other things of course (anyone for agar plates? :yuck: ) but it won't be liver! I did a run through of the prac today & it works a ...

Hi everyone, I'm new to the forum from Adelaide.....Hiya! Last night at a local lab manager's meeting a wonderful labbie told us the URL for Chemtalk & did a demo of the capsicum enzyme prac that she'd found on the site, needless to say there are probably a bunch of Adelaide labbies registering ...