How to Make a Safe Bomb

Step 1:

you need : baking powder

plastic container with a tight lid
a glass of water
a spoon

Step 2:

put 1-2 table spoons of baking powder in the container.

Step 3:

quickly fyll the container whith water and put on the lid.
Throw the container a few meters away from you.
Waith...

Step 4:

boom!!!!!