Tide pools are areas on rocks by the ocean that are filled with seawater. Tide pools can either be small and shallow or large and deep. The small ones are usually found far back on the shore and the large ones are found nearer to the ocean.

Tide pools form when the ocean covers the beach twice a day during the tides. The plants and animals that live close to or on the beach are forced inland when the tide washes over them. These animals can survive in both wet and dry conditions. In the tide pools, the tides bring fresh oxygen and food to them. Between tides, some of the smaller pools become too warm and begin to dry up. In order to survive, the animals hide under rocks and seaweed.