Usually, cartoon saxophones play cheerful and light-hearted melodies. They can be part of a comical scene or a fun party sequence to create a positive atmosphere. Sometimes, they might even play a little bit of smooth jazz to give a laid-back feel.
Well, a cartoon of a roller coaster might show lots of twists and turns in a fun and exaggerated way. The colors could be very bold and the coaster might look larger than life. Also, there could be little details like stars or hearts floating around for added charm.
Kids can start by looking closely at the details and the mood of the cartoon. Then, they can use simple and descriptive words to express what they think or feel about it.