Few community college students graduate on time. One reason many spend extra time and money trying to earn associate degrees is because community colleges often require more than 60 credits to meet academic program requirements.
If the bill is passed by the Senate, both the House and Senate bills are returned to the House with a note indicating any changes. If the Senate has made amendments, the House must vote on the bill again as both Chambers of Congress must agree to identical legislation in order for it to become law.
Redo the process, but this time change the bill in the first House (i.e. take off a shoe or something) and explain how a joint committee works. In this scenario, have your friends or classmates from both the House and the Senate gather for a few moments to emphasize the joint committee.