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In this activity, learners will examine various world data maps to combine the information and predict which areas could be tropical rainforests.

In this fun and in depth hands-on experiment, learners test various liquid samples (distilled water, lemon juice, vinegar, and baking soda mixed with water) to determine their pH levels and identify e

In this investigation learners explore the differences between, and interdependence of, living and nonliving elements in a water ecosystem.

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.

In this activity, learners create a freshwater ecosystem in a large plastic bottle. Learners cut and prepare bottles, then fill with water, aquatic plants, snails and fish.

In this activity, learners will examine various world data maps to combine the information and predict which areas could be tropical rainforests.