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In this activity (on page 1), learners role play as atoms to explore how atoms can be rearranged to make different materials.

In this environmental science lesson, learners will examine hazardous chemicals and their effects on human health and the environment.

In this activity, learners are introduced to tree rings by examining a cross section of a tree, also known as a “tree cookie.” They discover how tree age can be determined by studying the rings and ho

Learners will explore the scientific mystery behind a disappearing group of trees by examining data and attempting to explain the decline.