Making an explosive volcano without chemicals? HELP

[DChalo]

Making an explosive volcano without chemicals? HELP!

So here's the deal. I have to make a volcano that does not use chemicals or substances (potassium nitrate, baking soda, vinegar). It has to use mechanical parts to symbolize a volcanic eruption (ie springs for pressure). Any ideas? I have literally no thoughts on how to make it. I also want it to be impressive. Thanks for any help

 

[Simon Bridge]

Welcome to PF;
It is not possible to make anything out of any material without chemicals - everything is a chemical.
But I see what you mean - you want to get a model eruption without relying on a chemical reaction.

You realize that real-life volcanos fit the project description - what principles do they use? (i.e. mechanical or pressure?) How do they exploit the principles? Can you think of something that does something similar on a smaller scale?

Basically what you want is to get some model "magma" or something to come out the top of a papier mache cone yes? What sort of devices are there where some mechanical action causes a fluid to come out a hole?

 

[DChalo]

Any ideas?

 

[Simon Bridge]

I'm not going to do you R&D for you.
I've already pointed you in two good directions - the idea of these projects is that you get used to applying your own imagination. If I tell you what to do you won't learn.

Seriously: if you don't know how to squirt fluids about, you have more serious problems than I can deal with.