A wide variety of our popular filmstrip programs and some live action now available on video for easy presentation.
Plant succession replaces bare rock and soil with lush vegetation.
2 videos and guides. A comprehensive program that explores the origin and formation of bogs, common plants and animals, and compares bogs to other types of wetlands. Bog succession is illustrated by use of diagrams and photographs. 74 frames, cassette and guide. Slides, video or filmstrip.