A discussion of the U.S. Constitution, explaining the three branches of the national government, the Bill of Rights and the responsibilities of the leaders and the people who elect them.

Explains what wedges are and how they are used.

Explains what levers are and how they are used.

Explains what solids are and where to find them.

Explains what liquids are and how they are used.

Explains what gears are and how they are used.

Introduces police cars and other police vehicles, some of the gear that they carry, and the work that they do.

Introduces helicopters and the work that they do in a variety of emergency situations on land and over water.