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Offline zarz

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Model volcanos...
« on: 10/08/2007 06:57:09 »
Hi

Does anyone remember doing a lesson on volcano's in high school and simulating an eruption? I would like to do this with my class does anyone have suggestions?

Cheers


 

Offline Karen W.

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Model volcanos...
« Reply #1 on: 10/08/2007 07:38:41 »
Welcome to the forum Zarah,

Please enjoy yourself!

You can use a plastic bottle build your volcano around it. take the lid off add your baking soda quite a bit into the bottle with some food color if you like then add vinegar and stand back . We do it at the preschool it is a favorite with the kids!
« Last Edit: 10/08/2007 07:54:06 by Karen W. »
 

Offline Karen W.

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Model volcanos...
« Reply #2 on: 10/08/2007 07:39:52 »
There  may be other versions but that is the one we do!
 

paul.fr

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Model volcanos...
« Reply #3 on: 10/08/2007 09:39:39 »
How old are your students? Would the "standard" baking soda and vinegar experiment be too "childish" for them? Is ammonium dichromate banned in your school?
 

Offline Karen W.

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Model volcanos...
« Reply #4 on: 10/08/2007 11:53:21 »
That is more I think what they used in highschool! Mine are preschoolers and we are limited to the things we use.. like you mentioned Paul! How does yours work Paul?
 

Offline Bass

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Model volcanos...
« Reply #5 on: 10/08/2007 20:08:18 »
Here's one I've seen done- shows how a volcanic collapse crater (caldera) is formed.  Get a box, at least 2 feet (65 cm) square, and seal the inside bottom with tape.  Punch a small hole in the bottom, and stick a bit of tubing through the hole.  Attach the tubing inside the box to a small ballon (rubber bands work well).  Inflate the balloon, then build a mountain of flour (or some other fine grained material) on top of and around the balloon (but all contained in the box).  Slowly release the air from the balloon, and the collapse crater will form on the top of the flour "mountain".  Varying the rate of balloon deflation will change the pattern of the crater.
 

Offline daveshorts

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Model volcanos...
« Reply #6 on: 13/08/2007 17:24:16 »
That is pretty, I wonder if you were cunning and used a mixture of two different grain sizes and colours you could get some nice layering effects.
 

Offline Karen W.

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« Reply #7 on: 14/08/2007 00:49:32 »
I never thought about that.. that would be cool!
 

Offline zarz

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Model volcanos...
« Reply #8 on: 16/08/2007 05:15:27 »
Great ideas thank you! I think that the baking soda version could be related back to chemistry to make it relevant to high school students. I would use the flour version as more a demonstration/ motivator in Geology though, good idea with colouring and layer effects!!!! I thinking building an actual model would be more satisfying to high school students as well.

Thanks again!!!
 

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Model volcanos...
« Reply #8 on: 16/08/2007 05:15:27 »

 

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