Discussed is the accuracy of three statements commonly used in chemistry books and in teaching chemistry. (HM)

Presents questions and possible answers on organic nitrogen content of soils, molecular mechanisms involved in the light sensitive behavior of plants, and the metabolism of carbohydrates. (GS)

Six questions are listed that concern subject matter ranging from toxicity and biochemistry to insect physiology and physics. These questions may be used for study, review, or examination. Answers are also given. All of the questions relate to chemistry and may be adapted to different grade levels. (MR)