What do they want it for?
I found this if it's of any help
Search found 267 matches
- 08 Mar 2011, 12:16
- Forum: Recipes and Pracs
- Topic: starch agar
- Replies: 3
- Views: 1628
- 18 Feb 2011, 10:43
- Forum: Recipes and Pracs
- Topic: energy of food
- Replies: 14
- Views: 5402
Re: energy of food
we use nutrigrain, tiny teddies (tiny bears), rice crackers and barbeque shapes. It's kinda gross seeing them melt as oppose to burn because of the fat content!
- 15 Feb 2011, 11:52
- Forum: Recipes and Pracs
- Topic: Peroxide at secific ph
- Replies: 16
- Views: 4999
Re: Peroxide at secific ph
yeah am going with potatoe, easyer to cube , no smell just better !
- 11 Feb 2011, 14:14
- Forum: Recipes and Pracs
- Topic: Peroxide at secific ph
- Replies: 16
- Views: 4999
Re: Peroxide at secific ph
Thanks everyone. It's not needed till thursday next week so I will have a play and see what works best!
- 11 Feb 2011, 13:21
- Forum: Recipes and Pracs
- Topic: Peroxide at secific ph
- Replies: 16
- Views: 4999
Re: Peroxide at secific ph
Hi Lyn,
I have the prac book sitting in front of me and it asks for H2O2 with pH of 3, m7 and 10 it must be a consitent typo because peroxide with a pH of 7 is going to be water isn't it and peroxide with a pH of 10 isn't going to be peroxide at all?
I have the prac book sitting in front of me and it asks for H2O2 with pH of 3, m7 and 10 it must be a consitent typo because peroxide with a pH of 7 is going to be water isn't it and peroxide with a pH of 10 isn't going to be peroxide at all?
- 11 Feb 2011, 13:04
- Forum: Recipes and Pracs
- Topic: Peroxide at secific ph
- Replies: 16
- Views: 4999
Peroxide at secific ph
Hi all,
I have been asked for peroxide solutions with specific pH's. PH of 3, 7 and 10 I'm not sure how I am suppose to make these up of if the prac book the teacher is working from is confusing pH with concentration? It is for the liver enzyme prac for yr 12 Bio. Help!
I have been asked for peroxide solutions with specific pH's. PH of 3, 7 and 10 I'm not sure how I am suppose to make these up of if the prac book the teacher is working from is confusing pH with concentration? It is for the liver enzyme prac for yr 12 Bio. Help!
- 11 Feb 2011, 11:27
- Forum: Biology, Physics...
- Topic: projectile launcher landing pad
- Replies: 11
- Views: 4536
Re: projectile launcher landing pad
maybe a tray of sand? or the long jump pit? that way you can smooth it over after every launch
- 10 Feb 2011, 12:23
- Forum: Chemistry and Labware - General
- Topic: Buying Science Equipment in NSW
- Replies: 9
- Views: 2653
Re: Buying Science Equipment in NSW
No petty cash thats stupid!! HOw are you suppose to get hold of an onion for slid making or a banana for DNA extraction? Mail order and hope its not spoilt when it gets there?
- 10 Feb 2011, 12:17
- Forum: Miscellaneous
- Topic: air conditioners in school
- Replies: 26
- Views: 10070
Re: air conditioners in school
Aircons and fans in everyroom here!
- 08 Feb 2011, 13:35
- Forum: Chemistry and Labware - General
- Topic: Gas Taps
- Replies: 8
- Views: 3234
Re: Gas Taps
We had a few blocked ones (little darlings shovinf stuff in them)so we had a plumber come in a clean them out. I wouldn't have a clue how to go about cleaning them. I wipe the actual taps over with a damp cloth but thats all im prepared to do.
- 08 Feb 2011, 10:07
- Forum: Biology, Physics...
- Topic: Incubating agar plates with fingernail scrapings
- Replies: 2
- Views: 1959
Re: Incubating agar plates with fingernail scrapings
Our food tech teacher did this last week but with washed and unwashed hands, a clean chopping board swab and a kitchen sink swab. Here in the NT nothing is to be incubated above 27 degrees in schools according to out safety manual. We had growth after one night and you could see a difference , but t...
- 28 Jan 2011, 14:14
- Forum: Chemistry and Labware - General
- Topic: Electrophoresis
- Replies: 53
- Views: 16207
Re: Electrophoresis
Yep sodium bicarb buffer will try attaching another power supply to the one thats runing and seeing if that helps. Thanks!
- 28 Jan 2011, 10:59
- Forum: Chemistry and Labware - General
- Topic: Electrophoresis
- Replies: 53
- Views: 16207
Re: Electrophoresis
Hi Everyone!, a couple of my teachers want to do the electrophoresis prac this year and I tried it yesterday and am giving it another go today. I have followed all the instructions to the letter but it is just sooooooo slow.It took almost three hours yesterday to get a good result and it's been on f...
- 26 Nov 2010, 12:28
- Forum: Recipes and Pracs
- Topic: Fun experiments for demonstrations
- Replies: 17
- Views: 6531
Re: Fun experiments for demonstrations
For future reference this site is pretty cool for demos for the litluns http://www.abc.net.au/science/surfingsc ... efault.htm
- 23 Nov 2010, 11:39
- Forum: Sourcing Materials & Eq Repairs
- Topic: microscope cameras
- Replies: 1
- Views: 1225
Re: microscope cameras
they are only as good as your microscope. we have two Premiere USB ones that plug into the computer which is plugged in to the team boards in the labs so whatever your loking at can be viewed by the whole class and you can take snap shots of your images and save to the computer. They where purchased...
- 23 Nov 2010, 09:56
- Forum: Safety with Chemicals
- Topic: MSDS updating issue
- Replies: 12
- Views: 4933
Re: MSDS updating issue
Can you contact VWR and see where they stand on the issue. Does it have to be the manufactureres MSDS?. What about the chemgold MSDS's are they manufactureres ones?
- 16 Nov 2010, 14:24
- Forum: Recipes and Pracs
- Topic: PH Solutions
- Replies: 14
- Views: 8479
Re: PH Solutions
You could always try the buffers this has come from "The Laboratory" by Barbara Dungy Ph range 3.0-6.2 citrate buffer prepare two aqueouse solutions of 0.1 M citric acid (19.21 g per litre) 0.1M sodium citrate (29.41 g per litre) to make appropriate buffer add solutions in quantities shown...
- 16 Nov 2010, 14:20
- Forum: Chemistry and Labware - General
- Topic: pH list
- Replies: 4
- Views: 1976
Re: pH list
RosaliM I think this may be what you where referring to
- 16 Nov 2010, 13:57
- Forum: Recipes and Pracs
- Topic: PH Solutions
- Replies: 14
- Views: 8479
Re: PH Solutions
Does you teaher want Buffer solutions or just solutions with a specific pH?
- 12 Nov 2010, 08:28
- Forum: Recipes and Pracs
- Topic: Equilibrium prac with safranin & methylene blue
- Replies: 8
- Views: 3436
Re: Equilibrium prac with safranin & methylene blue
I found this , it uses other stains aswell as methylenen blue for this experiment. Lot's of different colour changes