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In this online Flash game, learners will explore a coral reef using an underwater remotely operated vehicle (ROV).

In this activity on page 2 of the PDF, learners discover how color changes can help scientists distinguish between acids and bases.

In this activity, learners work in small groups to match various marine animals with their different environments.

In this activity, learners observe live fish in tanks to consider how their body structures are related to their behaviors and habitats.

In this activity, learners cut out and assemble wheels to explore how variations in fish body structures (mouth shape/position/teeth, body shape, tail shape, and coloration patterns) allow fish to sur

In this outdoor activity/field trip, learners locate and study plants and animals in several freshwater pond habitats.