Historical uses of Arum maculatum (L.) are summarized. Temperature changes during spadix maturation, spathe uncurling in the presence of flower tissue, indol-3-y1 acetic acid, and gibberellic acid are investigated in the laboratory. Dilute solutions of both phytohormones cause significant spathe uncurling. Further investigations are suggested.…

Methods of investigating plant root growth developed for research purposes can be adopted for student use. Investigations of the effect of water table level and of ethylene concentration are described, and techniques of measuring root growth are explained. (Author/ML)

Using many different media, students can turn leaves into images which can be used for study, bulletin boards, collections, and identification. The simple techniques described include pastel printing, smoke prints, ink or tempura printing, bleach printing on t-shirts, ditto machine printing using carbon paper, and making cutouts. (DH)

Describes a project by secondary-level students of constructing a rain forest in a 14-by-14-by-8 meter space in a shopping mall. (PR)

This book provides a short course in the mysteries of seed structure, function, and development. Chapter 1, "Backgrounds, Hints, And Tips For Teachers And Parents," provides a basis for working with the mid-years student. Chapater 2, "Where Do I Start? What Do I Do?" provides procedural tips for science research. Chapter 3,…

Describes six different plants which will respond to various artificial stimuli. (SL)

Tips are given for collecting and identifying diatoms for use in secondary school biology classes. Collecting sites described vary from freshwater to terrestrial habitats. (SA)

Presents an account of the making of a wildlife garden. Reviews the problems and outlines the plans and methods that succeeded in the project. Includes 21 illustrations of vegetation as well as descriptions of pond, marsh, meadow, and woodland areas. (ML)

Deals with a fungus that plays an important role in the forests of Asia as a decomposer of recently dead trees and in agriculture as an important edible mushroom. Describes how to culture these mushrooms including materials, conditions, and troubleshooting. Gives ideas for classroom activities. (CW)

Reports on an investigation of a population of dandelions on a school lawn. Describes the objectives, rationale, study area, and the results of the study. Includes tables and graphs that show data collected. (RT)

Individualized biology activities for secondary students are presented in this teaching guide. The guide is divided into five sections: (1) investigating bread mold; (2) investigating transpiration; (3) completing a botany project; (4) collecting, preserving, and identifying leaves; and (5) writing up science laboratory investigations. The…

The Learning in Science Project (Primary)--LISP(P)--investigated the ideas and interests children have about flowering plants (in particular whether these plants have a life cycle). Data were obtained from: individual interviews with children, ages 7- to 14-year-old (10 students for each age level), using the "interview-about-instances"…