Search found 14 matches
- 14 May 2007, 12:18
- Forum: The Lab Tech Position
- Topic: How do I describe what I do?
- Replies: 49
- Views: 38739
Absent from work
I find that if I should be away for a day, the science teachers would be able to get out their equipment because all equipment is labelled and they are familiar with where I store equipment. I also try and ask teachers to provide experiments at least a day in front, so that I can have them out and o...
- 10 May 2007, 12:29
- Forum: Biology, Physics...
- Topic: disposing of Agar plates
- Replies: 20
- Views: 8075
Agar Plates
We heat our agar plates at 30 degrees, and we dispose by taping plates from the beginning after they have exposed them, and then these plates are not to be opened again. We incubate, view and then throw out by wrapping in newspaper, making sure all plates are sealed correctly and placing in a double...
- 10 May 2007, 12:18
- Forum: Chemistry and Labware - General
- Topic: making delivery tubes
- Replies: 10
- Views: 4234
glass tubing and rubber stoppers
Hi All, I make my glass tubing by using the bunsen burner, and as mentioned previously it is very time consuming, however rewarding when they work out. I believe you can purchase already made delivery tubes, but I am unaware of the cost. I find that I have many broken when being used in class also, ...
- 04 May 2007, 09:43
- Forum: Chemistry and Labware - General
- Topic: Boiling Chips
- Replies: 10
- Views: 4100
boiling chips
We use marble chips also, and the good thing is you keep recycling them.
Laurena
Waikerie High
Laurena
Waikerie High
- 04 May 2007, 09:37
- Forum: Chemistry and Labware - General
- Topic: Esters
- Replies: 3
- Views: 1960
esters
Hello, These are some of the esters that we make: Put approx 2ml of each substance into a large test tube, add approx 15 drops of sulfuric acid. Stopper the test tube loosely with cotton wool. Place the test tube in a large beaker of boiling water for approx 10-15 minutes. Pour contents into a 100ml...
- 03 Apr 2007, 10:42
- Forum: Biology, Physics...
- Topic: Tasting Electricity
- Replies: 3
- Views: 2303
Tasting Electricity
Joh, Sorry I didnt explain myself very well, in the experiment Tasting Electricity, we use salt water with two wires, that have attached a pce of carbon electrode and zinc electrode and the students touch these wires onto the tongue. It is very safe and causes no trouble to the heart. :roll: Laurena...
- 30 Mar 2007, 14:51
- Forum: Biology, Physics...
- Topic: Tasting Electricity
- Replies: 3
- Views: 2303
Tasting Electricity
We currently use a Prac called Tasting Electricity, unfortunately we find that it does not give us the best results, as we are unaware whether the students are feeling the tingling reaction or the wire. Salt Water Solution Carbon Electrode Zinc Electrode Two wires attached to electrodes and place on...
- 30 Mar 2007, 13:50
- Forum: The Lab Tech Position
- Topic: ARTIFICIAL BLOOD
- Replies: 2
- Views: 2232
Artificial Blood
Blood Group A - 0.5 Molar Sodium Chloride 2.9g/100ml water and add red food dye. Blood Group B - 0.1 Molar Barium Nitrate 2.6g/100ml water and add red food dye. Blood Group AB - mix equal amounts of the above two reagents and add red food dye. Blood Group O - water plus red food dye. Antisera A - 0....
- 29 Mar 2007, 15:31
- Forum: Biology, Physics...
- Topic: Glassware
- Replies: 4
- Views: 2447
Janet,
I have just read a booklet from Wiltronics, and they have Polythenelene Y pieces for .88 cents for (1-9)
.79 cents for (10-24)
http://www.chemtalk.com.au/viewtopic.php?f=26&t=451
Laurena
Waikerie High School
I have just read a booklet from Wiltronics, and they have Polythenelene Y pieces for .88 cents for (1-9)
.79 cents for (10-24)
http://www.chemtalk.com.au/viewtopic.php?f=26&t=451
Laurena
Waikerie High School
- 29 Mar 2007, 15:25
- Forum: Biology, Physics...
- Topic: Year 8 endothermic Prac
- Replies: 10
- Views: 4102
Year 8 endothermic Prac
We have recently been doing a topic on "Energy and Sound", however we are looking at changing our experiments and would like some other Endothermic experiments, has anyone got some ideas for our year 8 class. We have previously used - Calcium Oxide in Water and Phenolphthalene in Sodium Hy...
- 29 Mar 2007, 12:49
- Forum: Biology, Physics...
- Topic: Peanut Prac - Year 8 Energy
- Replies: 11
- Views: 4558
- 29 Mar 2007, 12:39
- Forum: Sourcing Materials & Eq Repairs
- Topic: cleaning crucibles
- Replies: 5
- Views: 2736
- 29 Mar 2007, 12:33
- Forum: Biology, Physics...
- Topic: Peanut Prac - Year 8 Energy
- Replies: 11
- Views: 4558
Peanut Prac - Year 8 Energy
We have been using the experiment "The Burning Peanut" for our Year 8 energy topic, however we have been finding more and more students suffer from nut allergies, therefore we have deleted this experiment, but have not been able to come up with another experiment that is as adequate or bet...
- 29 Mar 2007, 12:29
- Forum: Biology, Physics...
- Topic: Year 12 Biology - Junket tablets
- Replies: 4
- Views: 2471
Year 12 Biology - Junket tablets
Has anyone else had trouble purchasing junket tablets for year 12 Biology (Enzyme Activity), apparently these have been taken off the shelves in
South Australia.
laurena
Waikerie High School
South Australia.
laurena
Waikerie High School