HELP!!!! Presentation

for anything else that doesn't fit.
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linotas
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Joined: 21 Mar 2011, 22:39
State/Location: TAS

HELP!!!! Presentation

Post by linotas » 31 Jan 2013, 13:07

I need desparate help. I have just been asked to do a presentation at our our local CONSTAT in june for lab techs. I have no *bleep* idea what. This is only my third year in the job so it's not like I have heaps of experience to impart.

I need ideas, stat!!!

rhonda.punch
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State/Location: NSW

Re: HELP!!!! Presentation

Post by rhonda.punch » 31 Jan 2013, 13:53

Hi
hot ice always goes down well.
1) in a conical flask with balloon
2) universal indicator in water with hot ice
3) singing spoon with hot ice

rainbow measuring cylinders with different Ph layers+

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lada
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Re: HELP!!!! Presentation

Post by lada » 31 Jan 2013, 14:09

Presentation on what? Do you mean some fun experiments?
Dont worry, we will all help!!
Lada

linotas
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Re: HELP!!!! Presentation

Post by linotas » 31 Jan 2013, 14:15

Sorry, bit light on info. I have to give a 55min presentation/workshop on whatever I like to other lab techs (and probably a few interested teachers)

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noona
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Job Title: Lab Tech
School: Greystanes High School
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Re: HELP!!!! Presentation

Post by noona » 01 Feb 2013, 06:29

I am sure we could all give you a hand.
Dry Ice
burning chlorides
crystal making
how to clean bunsen burners
How to make a lime water still
Noona
Lab Manager
Greystanes High School
Beresford Rd
Greystanes 2145
8868 9113
ROSALIE.CASSAR@det.nsw.edu.au

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estelle
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Re: HELP!!!! Presentation

Post by estelle » 01 Feb 2013, 10:08

55 minutes, that's a while to keep people interested. Some kind of humor is always a good option.

ellice
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School: The Illawarra Grammar School
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Re: HELP!!!! Presentation

Post by ellice » 04 Feb 2013, 14:20

What about volcanoes. We do a great volcano demo. Soln1 3 teaspoons Aluminium sulfate in 100mL water. Add some food colouring.
Soln2 3 teaspoons Bicarb in 60mL warm water. Add 2 teaspoons gelatine, add 40ml extra water and stir.
Put a conical flask in a tray. Pour solution1 into the flask.
Quickly but carefully pour in soln 2.
Flame tests go down well. Everyone loves a bunsen.
Good luck, Ellice. 8-)

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Wayne
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Re: HELP!!!! Presentation

Post by Wayne » 12 Feb 2013, 13:27

Glad they asked you not me! I hate doing that type of thing! Seeing you are doing a presentation this year I will turn up, I'm not in Europe like last year.

linotas
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Re: HELP!!!! Presentation

Post by linotas » 14 Feb 2013, 08:41

Thanks Wayne. Maybe i'll just have to pick your brains then bwhahaha!

Purplehas
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Re: HELP!!!! Presentation

Post by Purplehas » 17 Sep 2019, 21:13

hi all,
just curious about the chemistry behind the volcano demo Elice mentions here

thanks in advance 8-)

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fibreweb
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Re: HELP!!!! Presentation

Post by fibreweb » 18 Sep 2019, 14:26

The bicarb reacts with the acidic Aluminium sulphate producing froth. The gelatine provides substance to the froth which rises reminiscent to elephant toothpaste

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