Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Input: The most common methods for their preparation are treatment of halohydrins with aqueous base, and oxidation of alkenes with peroxycarboxylic acids. The simplest member is used as a chemical sterilant, and its reaction with Grignard reagents is a convenient way to lengthen a carbon chain by two atoms. Their high strain makes them highly reactive, and they undergo ring-opening reactions with a variety of nucleophiles. Containing an oxygen atom in a three-member ring, FTP, name these cyclic ethers.
Output:
Science