Describes activities that can be done before and during the Solar Eclipse that is to occur on Saturday, March 7, 1970. Examples are: making a sun clock, charting the path of the sun, tracking the moon, predicting the eclipse, measuring the size of sun and moon, and observing the eclipse. (BR)

Aluminum foil, because of its characteristics, can be used for many elementary science activities: demonstrating Archimedes Principle, how to reduce cohesion, reflection and mirror effect, fuse action, condensation, friction, and as containers and barriers. (BR)

Discusses activities that can be carried out on a field trip study of mushrooms; follow-up activities in the classroom are suggested. Mushrooms are selected as an introduction to mycology mainly because of their large size and prominent reproductive structures. (BR)

Describes plant tissues that naturally contain substances poisonous to human beings if taken in large amounts. Some of these toxic materials are found in vegetables and fruits, as well as plants we normally don't eat such as yew. Also notes that plants recently sprayed with pesticides are harmful. (BR)

Describes the concept of the biotic community to aid children in understanding food, space, and other relationships among living organisms, particularly those communities where man is the dominant organism. Outdoor laboratory experiences are suggested to help children see their town or city as a man-dominated biotic community. (BR)