Chance: A chance is the same as a possibility. It means that something can happen and there’s a probability. A chance can also be accidental, it’s very much based upon opportunity.

Change: Change is all about the difference. It could relate to the public’s changing reactions. For example, if someone has a sad expression and then becomes cheerful and happy.

Challenge: A challenge relates to taking part in something, it also is similar to a test. You must demonstrate your abilities and provoke an outcome.