Schlessinger Media.

"Young viewers will explore freshwater ecosystems such as ponds and rivers, as well as marine ecosystems like coral reefs and the open ocean. They will learn that the animal and plant life found in water ecosystems make up communities that are as complex as they are beautiful. A hands-on experiment demonstrates what happens when pollutants get into ponds and lakes, while a visit with a marine biologist examines the oyster population of the Chesapeake...

A young Mammoth Islander observes some children playing on a see-saw and is inspired to try a simple machine called a lever to get her job done.

The Mammoth Islanders discover the power of an invisible force called magnetism when lightning strikes their wire and iron bar "clothes dryer." When an electric current flows through the wire, the current creates a magnetic field around it. The Islanders learn that opposites do attract.

Features many popular traditions that celebrate St. Patrick in Ireland, the United States and Canada. A brief historical biography of St. Patrick is provided as well as an overview of Irish immigration to North America.

The Mammoth Islanders decide to use the concept of a wheel and axle to create a machine that will help them dry their mammoths.

The inhabitants of Mammoth Island work together to retrieve a wedding ring that has fallen down a sink drain. They discover what a straw, a plunger, a vacuum and a jackhammer all have in common and the differences and similarities between air pressure (pneumatic machines) and liquid pressure (hydraulic machines).

Two young Mammoth Islanders are delivering mail with a mammoth-drawn wagon when they learn how important the force of friction is as they attempt to slow down. They test a variety of brakes to find the type just right for them, but even with proper brakes, they still get an unscheduled bath after a failed attempt to stop quickly.

Two young Mammoth Islanders enlist the help of a visiting inventor to design a machine that will make the rides at the amusement park much more exciting. After observing the power in the expanding steam of a tea kettle, they decide to build a steam engine that would convert heat energy to mechanical energy that will power everything from spinning cotton candy to powering roller coasters.

Discusses topics about the universe such as how it was formed, what it contains, the size, and how it can be explored. Includes NASA footage.

Children take an in-depth look at the life of this Civil Rights leader and learn about his commitment to nonviolence in the pursuit of social change. Teaches the important milestones of the Civil Rights Movement.