Any scientists on here

Just play this in the classroom and have a snooze.

 

Google, classroom volcano demonstration

lots of 'safe' stuff there.

 

and what's all this Ammonium Dichromate and Sodium Chlorate and Hydrogen Peroxide business, I'm surprised nobody mentioned Ammonia and Iodine, or Ammonium Nitrate, lets blow up the school shall we.

 

...or six pints of Cobra and a dodgy kebab. That has explosive properties

 

The other suggestions have been sensible. Kebab ok. But drinking and letting 4 yr olds have a drink hummm not sure there. It would be ok if I was in a yr 6 class.

 

Lots of good ideas for you on Google and YouTube.

This explosives lecture for kids is fun

 

just read this and started getting confused with amyl nitrite- but then a totally different thing would be getting blown

 

My first thought was the Jackass train set volcano but you'd definitely lose your job

 

Don't forget diesel and fertiliser ( ammonium nitrate) good enough for blasting rock should 'nt need much !!!!!!!!!! Biggus bang bang!!!!!!!??????.