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

This modeling activity allows learners to discover for themselves what Mendel uncovered in his famous pea experiments.

In this activity (Page 22 of PDF), learners investigate the evolution of wheat by washing different types of dough with water and comparing the results.

In this activity, learners will examine a variety of seeds, describe them, and determine how they are dispersed.

In this chemistry challenge, learners identify which plants have the enzyme "catalase" that breaks hydrogen peroxide into water and oxygen.

Using zebra mussels (Dreissena polymorpha), elodea and an indicator dye, learners study the role of light in photosynthesis.

In this open-ended multicultural lab activity, learners investigate the effectiveness of herbal remedies.

In this activity, learners explore how various energy sources can be used to cause a turbine to rotate.