Describes an experimental course in optics for 10th grade high school students. The course incorporates those historical ideas, views, and conceptions that constituted the early understanding of light and vision. Presents a part of the course which assesses its impact on students' views about science and some related technological and cultural…

Investigates high school students' knowledge of natural phenomena related to the concept of light flux as it applies to the seasons and illumination after they studied optics. Discusses didactic, cognitive, and ontological perspectives in relation to specific changes in the science curriculum. Contains 71 references. (DDR)

This annotated subject guide to Web sites for grades K-8 focuses on art appreciation, farming, measurement, reading and phonics, renaissance daily life, sound and light, and calendar connections for June observances. Specific grade levels are indicated for each annotation. (LRW)

Describes the construction and use of an inexpensive, portable photometer designed specifically for estimating population sizes in yeast cultures. Suggests activities for use with the photometer. (WRM)

Explains the scientific concepts, technical designs, and materials that make up incandescent light sources. (WRM)

Describes and explains a procedure for photographing the chaotic scattering of light. (WRM)

Presents an activity in which students create posters to explain their understanding of electromagnetic radiation corresponding to real world items. (YDS)

Plant tropisms--their directional movement in response to stimuli--are a fundamental concept in plant science and excite students because they are the observable signs of life in plants. Unfortunately, the precollege teaching literature is full of tropism misconceptions. An inexpensive clock clinostat is invaluable for student gravitropism and…

Fully opened leaves of potted plants of "Oxalis corymbosa" DC. closed completely by folding their leaflets downward after being kept in the dark for two hours. The folded leaflets, then moved upward gradually after exposure to light. We developed a simple method to measure the leaf movement. A paper protractor folded every 10[degrees] was devised…

In this article the effect of light quality on the size of the photosystem II (PSII) light harvesting complex (LHCII) is studied by measuring the chlorophyll fluorescence emitted by leaf sections of oat ("Avena sativa," var. Prevision) plants previously treated with either white light or with light filtered through blue, green, red or farred…

Qualitative analysis schemes are used in undergraduate laboratory settings as a way to introduce equilibrium concepts and logical thinking. The main component of all qualitative analysis schemes is a flame test, as the color of light emitted from certain elements is distinctive and a flame photometer or spectrophotometer in each laboratory is…

This worktext guides film and video students through a series of practical exercises, quizzes, and projects designed to help reinforce skills learned through applied lighting situations. The book is organized in three parts. The first part contains four chapters devoted to basic concepts: (1) "The Visible Spectrum"; (2) "Film and…

This pack of resource materials is designed for students in Scotland, ages 5-7, to be done with their parents at home or with another student in school. Forty-five activity sheets cover 7 different areas of science: Air, Magnets, Moving Things, Light, Heat, Myself and Water. The pack also includes a leaflet for parent or peer tutors, lists of…

This study was designed to determine whether a summer institute for elementary teachers could reduce or eliminate obstacles to teaching science. During summer, 1986, 10 primary teachers (K-3) participated in a month-long training session designed to help them improve their background knowledge of light and shadows and develop, teach, and revise a…

This military-developed text consists of nine lessons dealing with investigative photography. Covered in the individual lessons are the following topics: light (light as the basis of photography, the behavior of light, the composition of white light, light transmission, reflection and absorption, illumination, and pinholes and light); camera…