Activities designed to teach children about solar distance and size are presented. These include a classroom-sized model, an outdoor model, a read-aloud activity, and follow-up activities. Available resource materials in print and on film are listed. (CW)

Describes how teachers and students can construct a mass, spring scale, lever, and pulley. (ZWH)

Three activities--"Earth's Orbit and the Four Seasons,""Observing Rabbits," and "Solutes, Solvents, and Solutions"--are described. Included in each are background information, a list of materials, key questions, teacher preparation, teacher introduction, procedure, and follow-up activities. (CW)

Presents year-long, elementary science projects that address the question of why daylight hours vary in length according to locality. Provides three instructional units designed to commence in September, including data collection activities for sunny days encouraging later classroom calculations; on-going graphing activities; and modeling…

Activities that may take place in a greenhouse are discussed. Included are learning how to grow plants, plant growth, soil, vegetative reproduction, and plant habitat adaptations. Materials, procedures, and results are presented for the activities. (CW)

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)

Uses shoeboxes to set up science kits to supplement specific areas of the science curriculum. Each kit contains a set of material and instructions for a single activity. The activity is intended as an individualized experience that is related to a current topic of study or that reinforces a recent topic. Details for making six sample shoeboxes are…

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)

Several science activities are provided for use with middle and high school students to aid in their understanding of chirality (left and right handedness). (ZWH)

Presents an activity that models the changes in the concentration of carbon dioxide gas in the atmosphere during the last 200 years as determined from glacial records. (PR)

Fourteen astronomy activities are presented including classroom procedures and questions. Topics include different investigations of the moon, planets, stars, sunsets, light pollution, and rainbows and halos. Additional information on measurements used for observations in astronomy, and rainbow characteristics is included. (CW)

Presents a simple, graphical method for tracking the apparent motion of the Moon through a seven-day phase. Describes the necessary equipment, and the daily procedure for making observations. Includes suggested open-ended questions along with an appropriate reference. (JJK)

Presents 2 activities for students aged 8-12 in which students determine (1) whether or not earthworms can see white light; and (2) how an earthworm moves without legs. (MDH)

Two easy student activities that demonstrate physical weathering by expansion are described. The first demonstrates ice wedging and the second root wedging. A list of the needed materials, procedure, and observations are included. (KR)

Describes an activity measuring the amount of dissolved carbon dioxide in carbonated water at different temperatures. The amount of carbon dioxide is measured by the amount of dilute ammonia solution needed to produce a pH indicator color change. (PR)