WARNING! This experiment is dangerous! You should NOT perform this at home. ONLY carry out this experiment, if you are a trained chemist, and you understand local safety and legal requirements, which are required to perform such experiments
- Take gunpowder (mixture of potassium nitrate and charcoal) and grind it with a ball mill various times. Thus the samples of different particles size gunpowder are obtained.
- Put a small amount of the gunpowder samples onto a nonflammable plate.
- Ignite each sample with a burner or a match.