Question: Which of these activities might involve a chemist?

Answer: Determining the fat content in a candy bar.

Question: A chemist uses benzene, a chemical made from oil, to make a new type of plastic. What type of chemist is she?

Answer: Organic chemist.

Question: How did chemist Fritz Haber and engineer Carl Bosch contribute to society?

Answer: They discovered a way to make ammonia efficiently.