What is the difference between amendment and law and bill?

Question

for U.S constitution only

Answer 1

An amendment to the Constitution has to be approved by 75% of the state's legislature after it has been approved by over 50% of congress. For a new Law, Congress has to approve it by 50% for it to become a law. A bill is only a suggestion by someone to become a law. The bill has to go through committees, and then through Congress to become a law. A law can always be vetoed by the President unless two thirds of congress override his veto. And any Law can be shot down by the U.S. Supreme Court except an amendment to the Constitution

Answer 2

A bill is draft or proposal to make a Law, which is presented to the elected representatives. A amendment is a change made to an existing law, with the approval of the elected representatives.