Simplify the following text for a Grade 7 native English-speaking person.
Original: `` Napalm B '' is the more modern version of napalm and , although distinctly different in its chemical composition , it is often referred to simply as `` napalm '' .
Simplified: Napalm is made to burn at a specific rate and stick to materials . This is done by mixing different of amounts of napalm and other materials .