Coral reefs are very important, but they are in danger because of warmer water and pollution.
Today, we will learn about coral bleaching, why it happens, and how scientists use models to study coral reefs and protect them. Then, we’ll build our own coral reef model to show how coral bleaching works.

The United Nations Sustainable Development Goals (SDGs)
The SDGs are 17 goals created by the United Nations to make the world a better place.
As you go through the lesson, think about these questions:
- Life Below Water: Why are coral reefs important for sea creatures?
- Climate Action: How does climate change hurt coral reefs, and what can we do to help?

