Teachers' management of time and student motivation techniques are the subjects of "Make Your Time Work for You" by Margaret Morgan; "Teacher Identity/Student Success" by Bill Hosking; "How Much Motivation Is Enough?" by Gerald Larson and Carl Gorman; and "Solar Greenhouse Puts New Light on Learning" by Kari…

Described are the economic and agricultural issues surrounding the cultivation of desert plants, principally the jojoba, as a source of fuel. The article examines the environmental impacts of an industry based on arid-region cultivation of such plants. (RE)

Procedures used by a primary science class to build five different working solar furnaces are summarized. Diagrams, illustrations, and graphs of children's results are included. (DC)

An annotated bibliography of 34 children's books on different types of energy at various reading levels includes general titles, as well as books on coal, geothermal energy, nuclear energy, ocean engineering, petroleum, solar energy, and wind energy. (CHC)

Plans and activities are suggested for teaching elementary children about solar energy. Directions are included for constructing a flat plate collector and a solar oven. Activities for a solar field day are given. (SA)

Provided are hands-on activities on light, simulated emission, light radiation, and common uses of lasers. Directions and materials are discussed. Included is a diagram of a laser model. (CW)

Provides the methodology put forth by Moore and Kraus to separate Co++ from Ni++ in an 8M HCl solution. Notes that cobalt(II) forms a wide variety of anionic complexes. Points out that as the solutions leave the exchange column the color bands of green, blue, and pink are easily seen. (MVL)

The effect of sunlight on skin is described. Topics of discussion include the ozone layer, photosynthesis of vitamin D, tanning, the immune system, skin cancers, moles, prevention, sunscreens, effect of diet, vitamins C and E, the retinoids, carotenoids, and vaccines. Activities are provided. (KR)

A rationale is presented for the use of inquiry activities in the biology classroom when teaching the concept of evolution. An annotated list of evolution laboratory activities from 18 nontextbook sources is included. Each annotation includes the title, source, major evolutionary concepts, and a brief description. (KR)

A third-semester physics course that covers the topics of atomic physics, the theory of relativity, and nuclear energy is described. Activities that include the phenomenon of radioactivity, field trips to a nuclear power plant, a simulation of a chain reaction, and comparing the size of atomic particles are presented. (KR)

This paper considers the challenge confronting educators when considering the impact of risks generated by science and technology on the lives of citizens. (PR)

Describes the construction of an exponential decay graph that can be used in a science class to support discussions about the uses of radioactivity, its risks, limitations, and advantages. (WRM)

Describes an exhibition on radiation and the environment. Reviews students' and lay people's conceptions and how conceptions and constructivism can guide exhibition development. Considers whether such an exhibition can facilitate cognitive change and aid in the understanding of environmental matters using data from 16-year-olds' use of the…

This three-part module focuses on the principles of nuclear fusion and on the likely nature and components of a controlled-fusion power reactor. The physical conditions for a net energy release from fusion and two approaches (magnetic and inertial confinement) which are being developed to achieve this goal are described. Safety issues associated…

Radioisotopes are useful because of their three unique characteristics: (1) radiation emission; (2) predictable radioactive lives; and (3) the same chemical properties as the nonradioactive atoms of that element. Researchers are able to "order" a radioisotope with the right radiation, half-life, and chemical property to perform a given task with…