Discussed is misinformation people have on the subject of radiation. The importance of comparing artificial source levels of radiation to natural levels is emphasized. Measurements of radioactivity, its consequences, and comparisons between the risks induced by radiation in the environment and from artificial sources are included. (KR)

Reports that environmental radioactivity levels vary with temperature and precipitation and these effects are due to radon. Discusses the measurement of this environmental radioactivity and the theory behind it. (JRH)

Contains a poster dealing with energy uses for use in secondary-level classes. On the reverse side of the poster, there is a discussion of alternative energy resources. Activities in which students calculate the operating costs of solar-powered cars and the size of solar collectors needed to heat water are included. (AM)

Presents applications in (1) radiochemistry by using experimental data from earthquakes, and (2) Boyle's Law by the opening of beer cans. (CS)

Discusses the influence of the weather on the environmental radioactivity. Presents a method to measure the radioactivity using a Geiger counter scalar and a barometer. (JRH)

For many summers the Radiation Science and Engineering Center at Pennsylvania State University has been the site of a Nuclear Concepts and Technological Issues Institute for secondary school science teachers. As a culminating activity of the institute teachers develop lesson plans, laboratory experiments, demonstrations, or other activities and…

Describes exercises for students to estimate the magnitude of energy available through solar power, wind, atmospheric electricity, heat capacity of air, and latent heat of air. (SL)

Hand Middle School, Columbia, South Carolina, provides an example of what may be the extreme in making an old school building maximally energy efficient. (Author)

Describes the construction of a calorimeter to be used in an experiment which consists of measuring the rate at which ground level solar radiation raises the temperature of the metal in the calorimeter. (GS)

Provides instructions for making tin can radiation detectors from empty aluminum cans, aluminum foil, clear plastic, copper wire, silica gel, and fine, unwaxed dental floss put together with tape or glue. Also provides suggestions for activities using the detectors. (JN)

Described is a science fair project in which M- and X-class x-ray flares on the surface of the earth were detected using a Geiger counter. Background information, the problem, hypothesis, a list of needed materials, the procedure, observations, conclusions, and a critique are included. (KR)

Presented is a way to measure the sun's radiation by using a radiometer. Directions for building both simple and complex radiometers, circuit diagrams, and an explanation on how they work are included. (KR)

Describes how a thermosyphoning solar water heater capable of heating 110 kilogram of water to 80 degree Celsius and maintaining this temperature for 24 hours was constructed by four students in the fifth form of Sekolah Date Abdul Razak, Seremban, Malaysia in 1976. (HM)

Describes five ways for harnessing solar energy and lists references containing suggestions for classroom experimentation. (LS)