An eleven year old boy becomes mayor of his town.

Some of the Mammoth Islanders decide to explore the far side of a distant mountain ridge on a breezy spring day. Halfway up the steep trail, they become trapped and must be rescued by a hot air balloon.

A visiting inventor and two young Mammoth Islanders create a machine to cool off on a hot summer day.

The Mammoth Islanders are looking for an alternative to using mammoths to deliver their pizzas so they experiment with different internal combustion engines, from rockets to turbofan jet engines to gasoline engines. By comparing the advantages and drawbacks of these engines, they determine which one will serve their business best and ensure that the pizzas are delivered on time.

A bridge collapses and strands a Mammoth Islander and his mammoth on a small island. A young Islander discovers the principle of buoyancy when she observes wood floating on the water, and this aids in the rescue.

A visiting inventor discovers just how useful Mammoth Island's mammoth population is in keeping things warm one freezing winter day. The Islanders learn that heat can be travel from one place to another in three ways: conduction, convection, or radiation.

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.

Mammoth Island residents want to memorialize the winner of their annual golf tournament with a portrait, so a young Islander begins to experiment with how light, lenses and chemicals can be used to produce a photograph.

The inhabitants of Mammoth Island are trying to find the best method to lift their mammoths when a young Islander uses a simple machine called a pulley to get the job done. A pulley is a wheel that carries a rope, chain or cable on its rim and can be used alone or with other pulleys to lift heavy loads.