Search found 459 matches

by fibreweb
09 Aug 2013, 10:21
Forum: Free classifieds - 4 sale/swap/wanted/giveaway
Topic: chemical cards
Replies: 7
Views: 4131

Re: chemical cards

These were my bible when I first started here back in 1999. I would consult them whenever necessary. They contained a whole lot more information then what is in CSIS. For interest I grabbed one for comparison to the CSIS information, it is Zinc Sulphate as that was the easiest to grab being the last...
by fibreweb
06 Aug 2013, 14:46
Forum: Safety with Chemicals
Topic: CSIS
Replies: 6
Views: 2065

Re: CSIS

I would like to see the formula's included with each chemical. Also the GHS symbols that relate to the chemical. There also need to be direct guidelines as to the storage of the chemicals. Previously the chemicals have been stored in their classes. The new labelling doesn't have these classes on the...
by fibreweb
29 Jul 2013, 09:49
Forum: Sourcing Materials & Eq Repairs
Topic: Plastic shot glasses
Replies: 5
Views: 1825

Re: Plastic shot glasses

I buy a carton of 50 ml specimen jars every couple of years. It contains 500 jars for about $180 but they are reused time and time again and if they are beyond washing I just chuck them out. These are great for all sorts of things. I have year set (30 jars of each) collection of white powders (salt,...
by fibreweb
26 Jun 2013, 14:36
Forum: Biology, Physics...
Topic: Euglena Help
Replies: 14
Views: 2916

Re: Euglena Help

Thanks Noona, This is what I found when I looked at the easy view slides that had been sitting on the bench for about a week. I wondered why the bottoms had gone green, when I looked under the microscope i discovered why. Most of the other critters had died but the euglena had multiplied. Euglena 3....
by fibreweb
25 Jun 2013, 14:26
Forum: Biology, Physics...
Topic: Euglena Help
Replies: 14
Views: 2916

Re: Euglena Help

My hay infusion now has incredible colonies of euglena.
At St Mary's in 2009 there was a session making euglena colonies but I didn't attned that one.
I seem to remember something about conical flasks and rice but don't know exactly what it was.
Can anyone help?
by fibreweb
24 Jun 2013, 13:49
Forum: Biology, Physics...
Topic: dissection labels
Replies: 7
Views: 1875

Re: dissection labels

In 14 years I have never been asked to make labels for dissections
by fibreweb
14 Jun 2013, 12:38
Forum: Chemistry and Labware - General
Topic: Labelling unknowns
Replies: 8
Views: 2209

Re: Labelling unknowns

As most of the unknowns are only 0.1 M, a small quantity and are used quickly I just label them A.B. C etc.
by fibreweb
14 Jun 2013, 12:18
Forum: Biology, Physics...
Topic: Hay infusion
Replies: 20
Views: 4468

Re: Hay infusion

I got a handfull of hay from the hay shed in the Ag plot. Then about a litre of water from the trough (also in the Ag plot) in a small bucket put the hay into it, coverd it with glad wrap with several holes in it to try and limit the smell and left it on the window sill It would now be several weeks...
by fibreweb
13 Jun 2013, 14:09
Forum: Biology, Physics...
Topic: Hay infusion
Replies: 20
Views: 4468

Re: Hay infusion

Ekki-Ekki-Ekki-Ekki-PTANG. Zoom-Boing
by fibreweb
13 Jun 2013, 11:43
Forum: Biology, Physics...
Topic: Hay infusion
Replies: 20
Views: 4468

Re: Hay infusion

It was only last year my husband (58) realised what the k nigt (knight for those who aren't familiar with the Holy Grail) was!!!!!!!!!
by fibreweb
06 Jun 2013, 15:25
Forum: Biology, Physics...
Topic: Hay infusion
Replies: 20
Views: 4468

Re: Hay infusion

The hay infusion that I have at the moment is the best I have ever done!!!!!!!! :D
AVER0011.JPG
AVER0006.JPG
AVER0009.JPG
I also took a video but didn't know how to or if I could upload it.
The Easy view slide from Southern Biological works beautifully
by fibreweb
05 Jun 2013, 10:56
Forum: Biology, Physics...
Topic: Lasers
Replies: 5
Views: 1662

Re: Lasers

Laser Warning Sign16.jpg
It is Section 3.2 Science
3.2.4.7 lasers
by fibreweb
31 May 2013, 14:13
Forum: Biology, Physics...
Topic: Hay infusion
Replies: 20
Views: 4468

Re: Hay infusion

I get mine from the water trough down in the Ag plot and then toss the remnants there on the grass as well.
I figure amongs the cow, sheep and chook dung a few paramecium wont matter.
What do you do with the water from a vase of flowers? Boil it before you put it out on the garden?
by fibreweb
28 May 2013, 14:44
Forum: Chemistry and Labware - General
Topic: Storage of working solutions.
Replies: 22
Views: 5035

Re: diluted chemical storage

I forgot to say all the dilute acids are in one cupboard in the prep room, these are only 1M, and the alkali's in another. The concentrations over 1M are in the appropriate classes in the chem store. I was just looking at my list of solutions and the only things that are above 0.1M are Barium Chlori...
by fibreweb
28 May 2013, 13:23
Forum: Chemistry and Labware - General
Topic: Storage of working solutions.
Replies: 22
Views: 5035

Re: diluted chemical storage

Mine are just in alphabetical order. In my mind there are so dilute and essentially innocuous that alphabetically works fine. I have about 100 made up dilute solutions, most are only 250ml bottles with only Sodium Chloride, Copper sulphate and silver Nitrate in bottles greater then 500mls. They are ...
by fibreweb
06 May 2013, 23:08
Forum: Chemistry and Labware - General
Topic: pH meter calibration
Replies: 4
Views: 1328

Re: pH meter calibration

It's High School biology!
In my estimation these calibration figures are quite adequate
The process is what is important and as part of the evaluation the possible sources of errors are discussed.
From my use of pH meters trying to calibrate closer can turn into a real headache.
by fibreweb
26 Mar 2013, 20:39
Forum: Miscellaneous
Topic: What are you doing this Holidays
Replies: 51
Views: 15956

Re: What are you doing this Holidays

i did my last day today and now am off on long service until the holidays. :D Tomorrow at about 8.30 am my husband and I head off towards Narrandera and Lake Mungo on the first leg of our road trip to Kalgoorlie to visit our eldest son and then on to Perth and around the southern coast of WA. We the...
by fibreweb
21 Mar 2013, 10:21
Forum: Recipes and Pracs
Topic: Catalase
Replies: 1
Views: 858

Re: Catalase

I was noticing that yesterday myself.
I had suggested the teacher use capsicum instead of liver but got very poor results. Not at all like last years experiments.
Pureed silverbeet has worked very well though, besides we have it growing in the Ag plot anyway so don't need to buty it.
by fibreweb
21 Mar 2013, 10:17
Forum: The Lab Tech Position
Topic: EEI bookings - notice given
Replies: 10
Views: 4527

Re: EEI bookings - notice given

For the first 3 weeks of each year all Year 10 students do EEI (here we call them their Projects) That is about 200 individual projects AGHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH :crazy: It is a real drain on resources and I never get everything back. I wouldn't mind so much is some of them had a real sci...
by fibreweb
18 Mar 2013, 08:38
Forum: Recipes and Pracs
Topic: 'Hypo' Crystals
Replies: 2
Views: 956

Re: 'Hypo' Crystals

Sodium Thiosulphate