National Parks Service
Acadia National Park - Meet a Sea Star
Sea stars live in the intertidal zone all around Acadia National Park. Learn all about how sea stars survive by meeting one!
Wonderscape
Science Kids: Exploring the World of Invertebrates
This video is a lesson on invertebrates, the largest group in the animal kingdom. It explains the two main groups of animals - vertebrates and invertebrates - and focuses on the characteristics and examples of invertebrates. The video...
Visual Learning Systems
Simple Animals: Understanding Echinoderms
Upon viewing the Simple Animals video series, students will be able to do the following: Differentiate between and provide examples of vertebrate and invertebrate animals. Describe the basic body parts of a sponge (porifera). Explain the...