Step 1: Gather materials
a model rocket motor
a model rocket motor ingiter
a model rocket launch controller
a metal vegtable can (empty)
Step 2: Fill the container
Step 3: Make the explosive
this is made by leaving a rocket motor in a car on a hot day. this is very confusing, but what happens is that the motor will undergo a chemical change, and explode instead of doing a controled burn.
verners (another instructables memeber) also has givin me the idea to put it in the oven. i, however do not recomend this unless you are desprate, and if u do, use the oven at its lowest setting for a couple hours.
.775volts (instructables member) also gave me the idea to use a black box out in the sun on a hot day. i beleive that this will work.
you could also probly use a parabolic cooker. (if you don't know what that is, ask your math teacher, they will prolly know) basicly what it is is an insulated box with alluminum foil in it that will reflect sunlight to a center point making the inside temp. really hot (again, ask your math teacher for instructions, or get it off the interwebs)
so there you have your for options, and if u have another idea, post and i will try to edit the instructable ASAP thanks!