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In this activity, learners construct models of plants that are adapted to living under specific environmental conditions.

In this activity, learners are challenged to design and build a miniature tree house in a potted plant. This activity uses engineering concepts to encourage creativity.

In this outdoor, sunny day activity, learners experiment with paper leaf models to discover how some desert plants conserve water.

This paper describes a working-model demonstration of Ernest Rutherford's 1911 experiment about the nature of atoms.