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

In this activity, learners investigate how increased carbon dioxide (CO2) emissions from the burning of fossil fuels is changing the acidity (pH) of the ocean and affecting coral reefs and other marin

In this activity, learners build one or more edible coral polyps and place them together to form a colony.

In this activity, learners will create their own coral polyps - the basis for a coral reef.

The objective of this inquiry-based lesson is for learners to gain an understanding of how increasing ocean acidity can affect the calcification of marine organisms.

This activity models the mass coral spawning event that takes place at Flower Garden Banks National Marine Sanctuary every August.

In this activity, learners explore the factors that tend to resist changes in pH of the ocean and why the ocean is becoming more acidic.

Educator Amy O'Donnell from the American Museum of Natural History guides learners to create a diorama of a coral reef.