What makes the noise in thunder?
Lightning heats up the air really really hot, which forces the air to expand and spread out, and between the lightning and you it’s like a really long line at a fun ride where the last person in line pushes the person in front of them, who then pushes the next person, and so on, and you’re in the front of the line and eventually you get pushed. But with thunder, instead of feeling being pushed, you hear the air that’s been pushed, and it sounds like thunder.
