Directions are given for student learning activities on illusions, shadows, the spectrum, and colors. (DT)

Presents an activity whereby students describe the path of Mars through a background starfield. Includes purpose, materials, pre-lab, and procedure. Also provides guidelines for making a dial-a-planet wheel. (MA)

Presents three experiments exploring aspects of the greenhouse effect. Topics and discussion includes radiation in energy transfer, emissivity and absorptivity, the irrelevance of reflectivity, a digression on insulators and convection, climate change, and radiative energy balance. (MCO)

Describes an activity for use with a chapter on dinosaurs, prehistoric life, or digestion in which children make simulated dinosaur stomachs to gain hands-on experience about the theory of gastroliths, or stomach stones. Presents teacher information about the digestive processes in birds and dinosaurs. Discusses materials needed, objectives,…

Describes methods of making fossil models in the classroom. Step-by-step directions, as well as discussion questions, are given. A film and filmstrip is included. (MA)

Presents a global warming activity and extensions that direct students in visualizing changes that may occur as a result of the predicted sea-level rise. Includes a map of site-specific U.S. sea-level changes. (MCO)

Describes a simulation drilling core activity involving the use of a physical model from which students gather data and solve a three-point problem to determine the strike and dip of a buried stratum. Includes descriptions of model making, data plots, and additional problems involving strike and dip. (DS)

Presents a classroom activity wherein students use dilution techniques to gain an understanding of small measurements such as parts per million, billion, or trillion. Includes activity extensions, two lists of analogies for thinking about the size of small quantities, and questions leading to further investigations. (six references) (MCO)

Presents a simple, graphical method for tracking the apparent motion of the Moon through a seven-day phase. Describes the necessary equipment, and the daily procedure for making observations. Includes suggested open-ended questions along with an appropriate reference. (JJK)

Describes activities for earth science students from grades 7 and 8. Game questions, rules, and game boards are included for two folder funs. (MA)

Students often have difficulty relating contour lines to the shape of a landform. This article describes the construction of a simple landform model designed to help students better understand contour lines. (MA)

Presents two experiments about ozone related topics. The first experiment examines the effect of sunlight on newsprint and relates this to human skin. The second demonstrates how chemicals, and specifically chlorofluorocarbons travel through the air. (MCO)

Describes earth science activities for the visually impaired student. Includes soil type identification, stream table erosion, and relief map activities. Recommends a multisensory approach to the teaching of earth science and hands-on activities. (MA)

Describes the benefits and techniques of having students create models of chemical compounds. This hands-on approach uses colored paper and other inexpensive materials to construct the models. A step-by-step approach provides objectives, materials, an explanation on how to calculate chemical ratios, procedures, follow-up activities, and a resource…