Scholastic's 5-Minute Science Activity Box will get kids excited for science with 50 quick, exciting experiments designed to pique kids interest! Two sets of cards are included: Teacher Demonstrations and Student Activities. Teacher demonstrations are quick activities designed for teachers to present to the class that are so mind-boggling they might seem like magic! The hands-on student activities require only a few easy-to-find materials and include easy-to-follow instructions, a list of materials needed, the background on the science concept behind the activity, tips, and discussion questions. 50 8'x5' cards in a box. Grades 1-3.