Grade school volcanos

[Bbqjoe]

I don't think kids get to do it today with what we had. I believe they now use baking soda and vinegar.

But somewhere back in grade school, it was a class project to build a pretty good sized volcano, using paper mache and plaster.

After it was all painted and dry, the science teacher put something in a can at the top. It was an orange powder IIRC, and it had to be lit with a magnesium strip.

It shot sparks and orange flame out the top. I can't remember if it flowed or not, but it was pretty darn cool.

Anyone remember these, and what was the powder?

 

[chancer]

https://www.youtube.com/watch?v=v49CXu2nlnM

 

[Bbqjoe]

https://www.youtube.com/watch?v=v49CXu2nlnM

Not quite the same thing there princess!

 

[chancer]

FINE! Calcium Carbide!

 

[Randy H]

Potassium nitrate and sugar works well.

 

[Bbqjoe]

Potassium nitrate and sugar works well.

I'm sure, but you don't need magnesium to light that.

 

[chancer]

Coca Cola and Clorine tabets.

 

[Randy H]

http://www.skylighter.com/fireworks/how-to-make/science-project-volcano.asp

 

[chancer]

ammonium dichromate

 

[Rail rider]

I had a deprived childhood. I never got to build a valcano.

 

[Ebrownie]

We did it in 6th grade science. Most of the kids did the lame vinegar baking soda thing but me and a buddy used hydrogen peroxide and yeast. We got some of the 3% hydrogen peroxide and boiled it down to 20 or 30%. It went pretty good, probably shot 3-5 feet up while the other ones just kinda flowed out.