Making pickles developed from a laboratory lesson during a unit on solutions, suspensions, acids, and bases. The pickle lab has been used as a summation and application of these topics. Directions for setting up the lab experience and actually making the pickles are included. (MA)

The author proposes the inclusion of earth science curricula into the elementary school program because of the inherent interest nature has for young children. Some activities are described. (CP)

Reports on the geology of a 60 square kilometer area located within the central Mt. Lofty Ranges with special references to teaching activities. (CP)

In this insect morphology exercise, students study the external anatomy of the worker honeybee. The structures listed and illustrated are discussed in relation to their functions. A goal of the exercise is to establish the bee as a well-adapted, social insect. (MA)

Describes the organization and operation of a chemistry course for secondary students which emphasizes problem solving and student activities, particularly project work. (CP)

Described is the laboratory program for a second-year chemistry class at a Wisconsin high school. The laboratory stresses student-designed labs. Examples of topics considered are included. (RH)

Presented are the materials and a procedure for demonstrating the levitation of a magnet above a superconducting material. The demonstration can be projected with an overhead projector for a large group of students. Kits to simplify the demonstration can be purchased from the Institute for Chemical Education of the University of Wisconsin-Madison.…

This experiment/demonstration provides elementary through high school science students with hands-on experience with polymer entropy. Construction of a simple machine for converting light into mechanical energy is described. (RH)

Included are demonstrations that illustrate (1) the chemistry of air pollution, (2) combustion and explosion, and (3) various properties of liquids. (RH)

Describes two contests in which students: (1) build bridges from balsa wood; or (2) construct whizzers (self-contained motorized devices for movement on tight steel wires). Testing situations and guidelines for these contests are included. Points out that physics enrollments have increased as a result of the contests. (DH)

Describes appearance, longevity, and changes in each step of the mealworm life cycle. Guidelines for starting a classroom colony are given with housing and care instructions. Suggested observations, activities, and questions for students are included. (DH)

Presents directions for making a three-dimensional model of the ocean floor using simple materials, with procedures for including such features as continental shelves, fractures, and canyons. In addition, steps are given for discovering the shape of another student's model using bathymetry (measurement of depth). (DH)

Provides (1) information on how dinosaurs lived and were adapted to survive; (2) activities on this topic; and (3) ready-to-copy student materials. Each activity includes an objective, list of materials needed, recommended age level(s), subject area(s), and instructional strategies. (JN)

Presents lists of materials needed and procedures to build a collection of dinosaurs using different sized boxes, build life-sized dinosaur bones using paper-mache and chicken wire, make paper dinosaur stickers, and make dinosaur pop-up cards. These arts/crafts activities can be used to complement activities in science and other subjects. (JN)

Teaching how scientific models work can result from "black box" techniques applied to various classroom seating arrangements. The teacher can assign students to seats based on observable (last name, height) and nonvisible (telephone number) criteria. Students become involved in guessing the criterion, which leads to discussion of models and…