Illustrates the concept of phototropism and the development of root systems using a classroom-constructed clinostat. Provides instructions to construct the clinostat and tips to promote plant growth. (MDH)

Presents a teacher-made instructional material that can be used to help students understand and retain the concepts of magnet and magnetic field. Doughnut-shaped magnets levitate above each other when placed over a post with like poles facing each other. Instructions are provided to make the device. (MDH)

Describes an activity in which students receive individual questions (i.e., What is a sparkler made of and what makes it sparkle?) to answers from their "Aunt Gladys." Students must research the everyday question, discover the answer, and then translate the answer into the common language of the masses. (PR)

Described is a program in which students learn about spectroscopy and instrumentation to solve a chemical forensic mystery. Infrared and nuclear magnetic resonance (NMR) spectroscopy, refractometry, and chromatographic techniques were used. An example of a mystery case is included. (KR)

Provided is a perspective on the teaching of a unit on the Earth in space. The themes to be found within the unit, approaches and resources that can be used for teaching and learning the subject, and some of the typical ideas that children hold about astronomical subjects are provided. (KR)

Investigated were determinants of teachers' behavioral intentions including attitude toward the behavior, subjective norm, and perceived behavioral control. Intent to perform the behavior appears to be under the control of most teachers, with little need for social support and with ample resources and sufficient opportunities available to perform…

Described is a project which was designed to take advantage of the use of a videocassette recorder to produce science lessons which could be viewed by children and their parents at home. Examples of several home lessons are provided. Feedback for the program is discussed. (CW)

Detailed are the construction of a demonstration car, apparatus and procedures used in the demonstration, and the analysis of the effects of car braking. The cases of rear-wheel and front-wheel braking are considered. (CW)

Explains how radiographs (from X-rays) can be used in elementary and middle-school curricula. (PR)

Discusses how the Science Activity Filter can facilitate elementary school teachers' choices of appropriate science activities for their classrooms. The filter is a process for choosing activities that considers seven factors: (1) meaningful learning; (2) the amount of time required; (3) cost of materials; (4) safety; (5) level of difficulty; (6)…

Surveyed 232 college students in an introductory biology course on their attitudes and perceptions on aspects of biology that they should have covered in high school science. Results indicated majority of students felt very or somewhat familiar with the topics covered in the survey. A sizable majority of students were only somewhat familiar with…

Describes using a local college for the teaching of the recommended Advance Placement laboratories as a way to increase greatly needed course time and to increase the amount of equipment available. (PR)

Describes exercises to examine the global carbon cycle. Students are asked to predict consequences of increased carbon dioxide emissions into the atmosphere and to suggest ways to mitigate problems associated with these higher levels of atmospheric carbon dioxide. A comparison modeling exercise examines some of the variables related to the success…

Provides a personal account of one science teacher's participation in a teacher workshop in which teachers learned about volcanic development, types of eruption, geomorphology, plate tectonics, volcano monitoring, and hazards created by volcanoes by examining Mt. St. Helens. Provides a graphic identifying volcanoes active since 1975. (MDH)

Describes the construction of a wave generator used to review the algebraic relationships of wave motion. Students calculate and measure the weight needed to create tension to generate standing waves at the first eight harmonics. (MDH)