Students make qualitative and quantitative observations of natural objects such as leaves using hand lenses, microscopes, and measuring devices. The plant observations precede a field plant activity. On the trail, students figure the length of their steps in order to calculatedistances in meters, then use trundle wheels or meter tapes to measure the actual distances. Older students also record compass directions. Finally, students do an activity designed to enhance observation skills and sensory awareness.
Students review their previous visit with a tree observation and identification game on the trail.
Students experience a riparian area, usually a beaver pond, where they collect biotic and abiotic information using nets, traps, binoculars, thermometers, soil augers, etc. 3. During the wrap-up session, students use a variety of science skills to predict impacts which could result from certain human decisions concerning the riparian area. Students use observation and measurement skills to identify and record characteristics of soil horizons. At the soil pit, properties of soils are explored, including texture, color, organic content, and percolation. Students are asked to make inferences about how soils influence certain land use decisions, such as where to place a septic tank or where to build a road.