Students examine the needs of trees and plants. In this forest ecosystem lesson students use seedlings to investigate the basic necessities of plants. They discuss the consequences of these basic needs not being met.

Learners are introduced to the characteristics of trees and different techniques to identify them. They distinguish between a deciduous and a coniferous tree. Students describe at least four characteristics used to identify trees. They...

Students  compare deciduous and evergreen trees. In this tree lesson, students list the differences between these two species of trees.

Students investigate the different leaves of Wisconsin. They gather samples of leaves in order to compare to the samples taken from Puerto Rico. They make observations and collect data recording the size, shape, and texture of the...