Mia's friends are fish-sitting while she is away on vacation. Zoe divulges to Sam that different animals need different habitats, and that there are both freshwater and saltwater ecosystems. Examples of the kinds of organisms found in...

Using cabbage juice as a pH indicator, future scientists explore the effect of increasing carbon dioxide on the pH of the ocean and relate it to the health of coral reefs. Ideal for an earth or environmental sciences course, this...

Different animals live in different habitats, and each animal has specifically adaptive traits that make them tailor-made for their environments. This is true on land and in the ocean. Little ones examine how various marine animals have...

Students compare kelp and land plants. In this sea plant lesson, students look at the role of algae in aquatic environments. They research the properties of kelp and explore seaweed.