Activities, experiments, computer programs, equipment, procedures, demonstrations, and teaching techniques are provided for a wide variety of topics in the biological and physical sciences. They include an improved apparatus for measuring rate of photosynthesis, procedures for making rainbows and measuring stomatal openings, and others. (JN)

Ranger Rick's NatureScope is a creative education series dedicated to inspiring in children an understanding and appreciation of the natural world while developing the skills they will need to make responsible decisions about the environment. The topic of this issue is "Wading into Wetlands." Contents are organized into the following…

Discussed is the intertidal region and the characteristics and adaptations of the organisms that live in that region. Several activities that involve the intertidal region are described, which reinforce the adaptive behaviors and forms of the organisms found in the intertidal region. (Author/DS)

The use of live animals in the secondary school laboratory is discussed along with suggestions for increasing the use of live animals and challenges to those teachers who restrict this use. (SA)

A paper model which is designed to give students a hands-on experience during lecture and blackboard instruction on DNA structure is provided. A list of materials, paper patterns, and procedures for using the models to teach DNA structure and replication are given. (CW)

The use of living animals in the classroom is discussed. A checklist of ideas to remember when considering housing animals in the classroom is provided. (CW)

Presented are the results of a study of the effects of peer-led tutoring groups on achievement in college chemistry. Supplemental instruction was effective in increasing students' achievement in chemistry as measured by final grades in chemistry and responses to a questionnaire. (CW)

Discussed are hazardous substance regulations in Great Britain which effect science teaching at the secondary and college level. Included are background information, immediate implications for schools and colleges, and risk assessments concerning biology classrooms. The responsibilities of Local Education Associations are highlighted. (CW)

Describes a mouse skeleton reconstruction activity from owl pellets. Gives information about the materials, directions for students, and a five-day unit schedule. Provides some owl pellet sources. (YP)

Provides explanations of 15 experiments, laboratory activities, demonstrations, and lessons for use in instruction. Includes information on Daphnia, wild garlic, crystals, gas chromatographs, bleaches, alcohols, reactivity series, chemistry formula, electronic keyboards and waveforms, interference and diffraction gravity, Moire fringe patterns,…

Presents nine hands-on discovery and inquiry type activities which penetrate the student's immediate world, integrate other curricular areas, involve group cooperation, excite, motivate, and encourage creative thinking. (RT)

Describes activities which demonstrate the abundance of organisms living underground. Provides outlined directions, lists of materials, and a soil ecosystem transparency for delving into the properties of soil. (RT)

Presents teacher comments on audiovisual materials dealing with: biotechnology applications in immunology, agriculture, and cancer research; efforts to halt the eutrophication of Lake Tahoe; and banana slugs. Availability and costs of materials are included. (RT)

Examined are some of the distinctive features of the biological sciences. Discussed are the use of models with case studies, universal principles, and alternative frameworks. (CW)

Presents a lesson on introducing writing into the science curriculum by using an experiment to illustrate the detrimental effect of tobacco smoke on human lungs. Outlines the materials, procedures, a summary of the project, extension activities, and additional information about the writing process. Two handout sheets are included. (RT)