Starter is bad on a 2000 Chevy cavalier how can i tell if my starter is bad on my car what can i do to find out please help?

Make sure battery and charging system are working. Are battery contacts clean and on firmly? Is battery holding a charge, not going dead after a few days of no activity? Is the alternator delivering 13 or 14 volts? Are wires to starter clean and on firmly? If yes to all, suspect starter. A starter can fail different ways: With worn internal contacts it will click but not turn over. With stuck solenoid drive, may whirr but not engage. With faulty solenoid may do nothing. Remove starter and bring to auto parts store for testing