Cooper, Jason

A basic introduction to crayfish, focusing on their physical characteristics, habitat, diet, activities, life cycle, and reproduction.

Describes some of the plants found in the oceans, in salt marshes, and along the seashore, and their importance to the ecology.

Describes different kinds of mollusks, with information on how their shells are formed, where they live, and how to collect sea shells.

Describes such marine animals as shrimp, horseshoe crabs, starfish, mollusks, and sponges.

Describes some of the species of large fish, mammals, reptiles, and birds that live in and around the world's oceans.

Discusses the history, purpose, and construction of different types of castles.

Examines the history, varieties, and special uses of trucks.

Examines the history, varieties, and uses of trains.

Provides a simple discussion of natural magnetic force, electromagnets, and magnetic fields.

Examines the history, varieties, safety aspects, and special uses of motorcycles.