Accidental vs Incidental

Eight quick sentences here help you separate accidental from incidental. Something accidental happens by chance and without planning, while something incidental is minor or comes along with the main thing. You fill in the blank for lines like "Potato chips were an ___ invention" and "Dental assistants must avoid ___ exposure to X-rays." Good for beginners, with just one pair to keep track of. One fun takeaway from the questions is that potato chips really were an accidental invention, the result of a cook trying to annoy a picky customer rather than make a snack.