Patricia Armentrout

Briefly describes some of the machines that fly in the air, including the Wright brothers' flying machine, helicopters, ultralights, dirigibles, hurricane hunting planes, supersonic airplanes, and others.

Updated for 2020, Eco-friendly energy is explained. The most current information is provided while establishing the understanding that it does not take much to make the world a better place.

"Take an incredible look at the planet Mars and its place in our solar system. Find out how it compares to Earth and learn more about its future exploration"--Back cover.

Updated for 2020. Banks and their uses are described in this book, which includes details such as who works in banks, why banks are necessary, and what special equipment bankers use.

Discusses different ways people have paid for things throughout history, including barter, cash, credit cards, and checks.

Describes different kinds of submersibles, ships that can go underwater, including submarines, bathyscaphes, and the ABE or Autonomous Benthic Explorer.

Updated for 2020, Engaging text describes animals that don't always do what the rest of their species do.

An introduction to drag bikes, how they are raced, racing rules, and safety equipment needed.

Provides An Up-Close Look At Sport Bikes And The Thrill Of Riding Them.