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In this activity, learners create a soil and water model of a single-cell life environment and study living microorganisms.

In this activity, learners explore the "nuts and bolts" of gene chips.

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

Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide.

This activity was designed for blind learners, but all types of learners can have a tactile opportunity to construct a karyotype, an organized model of an organism’s chromosomes, conveying the chromos

In this ecology activity, learners make a model water-based ecosystem called a terraqua column. The column (in a large soda bottle) includes pond water, duckweed, sand or gravel, and small snails.