Simplify the following text for a Grade 7 native English-speaking person.
Original: Ski jump techniques is divided into four sections ; 1 ) In-run , 2 ) Take-off ( jump ) , 3 ) Flight and 4 ) Landing .
Simplified: The ski jump is divided into four separate sections ; 1 ) In-run , 2 ) Take-off ( jump ) , 3 ) Flight and 4 ) Landing .