Introduces a science activity on butterflies and their life cycles in which students keep journals of their observations. Explains how to build a butterfly observatory in the classroom. (YDS)

Explains student misconceptions of electricity. Presents a lesson plan on electricity that focuses on how to build a circuit and current flows in serial and parallel circuits. (YDS)

Describes cooperation with the Saint Louis Zoo to provide opportunities for elementary school students to learn about bones, how animals move, what they eat, and how much they grow. Uses biofacts which include bones, skulls, and other parts to make the laboratory a hands-on experience for students. (YDS)

Describes an activity on worms that investigates their anatomy and habitat and reactions to various environments. (Contains 12 references.) (YDS)

Introduces a Martian simulation activity that aims to build a scale model of Martian terrain in the classroom. Uses an interdisciplinary approach to teach science process skills, modeling, scaling, sampling, population calculation, and genetics. (YDS)

Introduces the Apple Ocean activity which teaches about the diminishing natural resources of the earth including drinkable water, habitable land, and productive areas while working with fractions, ratios, and proportions. (YDS)

Describes a science activity that promotes science process skills while investigating the properties of packing peanuts. (YDS)

Introduces a science activity on the environment that uses a large canvas floor map and riddles. (YDS)

Introduces a weekend science program for early childhood and elementary school students. Uses kites to teach about lightening as a source of electricity and aerodynamics. Includes directions on how to make a kite. (YDS)

Describes a science activity in which students study stream profiles of an imaginary aquatic environment, measure the stream depth, and graph the cross section both in classroom simulations and on a field trip. (YDS)

Presents a trade book that can be used in teaching the life cycle of butterflies. Includes sample activities and Internet resources. (KHR)

Presents an outdoor activity to study pill bugs. Includes a lesson plan. (KHR)

Presents an activity for students to construct their own two-cup balances. Suggests some alternatives for rejuvenating weak bar magnets. Describes how to remove burnt carbon deposits from glass vessels. (NB)

Describes a unit on the study of ladybugs. Suggests that most people, especially children, consider ladybugs to be friendly and therefore are eager to observe and learn more about them. Presents activities, lists interesting ladybug facts, and makes recommendations for interdisciplinary learning. (NB)

Describes an interdisciplinary unit for upper elementary students that integrates science, geography, history, and mathematics in the study of spoons. Students determine the volume of each spoon by submerging it in a graduated cylinder of water and measuring the difference in water levels before and after submersion. Shows students that scientific…