better than baking soda and vinegar

[random]

for a science fair project I was wondering if there is a better (more violent) solution for a kids volcano. It still has to be safe of course but we want it to shoot up instead of just foam over top.

 

 

[Phi for All]

. If you choose a clear soda, you could dye it red/orange. Needs to be in the bottle, or with a restricted neck for maximum pressure.

 

I like the way this guy set it up so the bottles are removable. Saves time filling a cemented-in bottle with soda.

 

Messy but safe.

[Greg Boyles]

for a science fair project I was wondering if there is a better (more violent) solution for a kids volcano. It still has to be safe of course but we want it to shoot up instead of just foam over top.

 

 

 

 

Potassium permanganate and glycerine is relativey safe as long as it is done in open air or a fumehood.

[ewmon]

Random, what is the grade level of the student(s)?

[GM11]

Elephant tooth paste? Google it as many recipes, depending on age group pick one of those.

 

 

EDIT!!

 

Did it again! sorry I keep raising the dead.

Edited October 12, 2015 by GM11

[fiveworlds]

Mentos and diet soda. If you choose a clear soda, you could dye it red/orange

 

It is the carbonated water that makes the effect with the mentos. The mentos is a catalyst for the formation of c02 bubbles. The more pressure used in adding carbon to the water the larger the fountain produced.

Edited October 14, 2015 by fiveworlds