The goal of this activity is to solve problems encountered when preparing food for space flight. Includes student worksheets. (MKR)

Describes school science activities in which students race model cars built from mousetraps, construct inventions using discarded junk, and compete in an egg dropping contest. (SL)

Describes three inquiry-based activities designed for students to begin to understand complex environmental relationships in their own backyard. Includes investigations of ants, which allow students to establish a baseline survey of ant fauna, test the importance of ants in nutrient cycling and soil structure maintenances, and increase student…

Describes an extended problem-solving activity utilizing drift-bottles that encourages students to deduce probable and great-circle drift-bottle routes, to use logic based on unit calculations, and to estimate the distance traveled and the minimum velocity of these drift-bottles. Includes materials needed, learning objectives, procedures,…

Describes the construction of durable, inexpensive and large sand-hourglasses for use in controlled experiments that allow students to observe, infer, measure, record data, and predict. This hands-on activity is designed to take place over a three-day interval. Includes materials needed, techniques, procedures, follow-up activities, and resource…

Listed with examples are six levels of thinking. The design of lessons to teach higher order thinking is discussed. A sample lesson on spontaneous generation which uses this method is provided. (CW)

Illustrated are five classroom projects about the relationship between weight and size in animals. Background information and procedures are provided. Ten extension activities are suggested. (CW)

In 1985, participants in the Second International Science Study developed and evaluated hands-on problem-solving activities and gave students the opportunity to demonstrate mastery of science process skills. Six evaluation stations for fifth and sixth graders are presented: Blowing in a Liquid, Compare and Contrast, Electrical Circuit, Hot and…