An amusement park has rides, games, shows for fun. A theme park has attractions around a central theme. Theme parks tell stories, use costumes, characters. They create imaginary worlds, make education fun. Amusement parks focus on thrill rides. Theme parks started later than amusement parks. Both have rides for all ages. But theme parks are more immersive.
Disney: Amusement or Theme Park?
Is Disney an amusement park or theme park?
Six Flags: The Name Origin
Why is it called Six Flags theme park?