Describes procedures that students can follow to develop latent prints. An introduction of chemistry of latent prints is also presented. (HM)

Discusses how a science teacher can explain to his youngsters what happens when an ice cube is added to tap water or other liquids. How long melting a standard ice cube takes is also discussed. (HM)

Describes an approach to teaching animal classification by applying a scientific examination of the types and arrangement of the teeth. This approach may be used by high school students. (HM)

The study of seeds and their dispersal is an excellent way to help students understand basic concepts which will help them in their adult decision-making activities regarding environmental problems. This article discusses the purpose of seeds, aspects of seeds, and collecting seeds. Classroom and outdoor activities with seeds are listed. (NQ)

Describes the Environmental Action Task activity, which may be used as a recreational game or an environmental perception experience, may be conducted indoors or out-of-doors, using weed stems (or spaghetti) and masking tape to construct a cantilever. Small groups of children work together to make the cantilever with the longest arm. Further…

Boyle's Law and basic relationships between volume and pressure of a gas at constant temperature are presented. Suggests two laboratory activities for demonstrating the effect of temperature on the volume of a gas or liquid. (CS)

Describes a program for teaching about tropical rainforests in a concrete way using what's outside the door. This activity uses an eastern deciduous hardwood forest as an example. Step-by-step instructions include introductory activities, plus descriptions of stations in the forest to be visited. Resources include books, audio-visual materials,…

Describes the role of research in designing ScienceWorks, an innovative gallery at The Children's Museum of Indianapolis. The gallery was constructed on the basis of existing and new research on how children think and learn about science. The gallery is atypical in several respects but perhaps most fundamentally in its overarching agenda to foster…

Describes role-play centers in which children can do math problems, invent, experiment, write with a purpose, and act out adult career roles. Examples of centers include a doctor's office, a supermarket, a fix-it or inventor's workshop, a post office, a pet store, a zoo, a veterinary clinic, a museum, and a restaurant. (DKM)

Presents a simple method of recording root growth which can be used in schools. A slant board system was designed to facilitate access to roots to enable measurements to be made, essentially forcing the roots to grow in a two-dimensional form which allows each student to observe and record root growth over several weeks. (AIM)

Describes an alternative approach to the familiar paper cup and seed project in which students make grass heads out of nylon mesh stockings, sawdust, wire, rubber bands, plastic eyes, and grass seed. Students can observe the effects of light, sprouting rates, and the height and color of the sprouts on these grass heads. This creative activity is…

Presents a science activity designed to introduce students to the geocentric and heliocentric models of the universe. Helps students discover why phase changes on Venus knocked Earth out of the center of the universe. (DKM)

Discusses the importance of science process skills and describes ways to select sets of random numbers for selection of subjects for a research study in an unbiased manner. Presents an activity appropriate for grades 5-12. (JRH)

Describes a project where students visit, evaluate, and report on chemistry web sites. Discusses implementing the project, problems with the process, and results and rewards. Includes the evaluation form used and lists students' top chemistry sites. (JRH)

Describes an approach that uses the learning cycle to meaningfully teach students about mineral properties while alleviating the tedious nature of identifying mineral specimens. Discusses mineral properties, cooperative learning, and mineral identification. (JRH)