Four lessons introduce elementary ecologists to salt marsh and sandy beach habitats. In the first lesson, they place shells and other materials in vinegar to determine if they contain calcium carbonate. In the second lesson, they read a...

Students investigate taxonomy. They explore some of the commercial marine species caught in Magdalena Bay and develop a classification system for presented animals.

Students take a trip to Galveston's beaches. They collect empty shells, and visit the internet site to identify the seashells they find. Students visit the linked websites to view pictures of seashells and aid in their identification....

Pupils listen to a story about seashells. They discuss shelled animals. Learners describe the function of seashell. Pupils relate the function of a seashell to their own dwelling. They differentiate between shelled animals that make...