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To start with I crushed up 5 big match-heads and put the sticks in a bag. I used these later for kindling. Next, I scraped the side off the matchbox until that was a fine powder.After that, I gently mixed the two ingredients together and pushed the mix into a tinfoil square 7cm long.Then, I carefully folded up the tinfoil and moved outside with it.Finally, I put on my safety glasses and put it on the top of a dry brick. I hit The Big Bomb as hard as I could and it exploded into lots of pieces with a loud bang that made my ears ring for five minutes afterwards!
You should check with an adult first unlike me and ask them if it is ok to try this fun experiment.
Do not stand too close to this bomb as it will obliterate anything in its path.