Lepora, Nathan

Photographs and text provide information about robots, explaining what they are and how they are controlled, and looking at many different types of robots and how people use them.

Explains forces of physics through the description of roller coasters, discussing force, speed, acceleration, mass, inertia, friction, air resistance, and braking.

Photographs and text provide information about robots, explaining what they are and how they are controlled, and looking at many different types of robots and how people use them.

Photographs and text provide information about robots, explaining what they are and how they are controlled, and looking at many different types of robots and how people use them.

Helps middle school children learn about the forces of motion through amusement park thrill rides, explaining how roller coasters, bumper cars, and other rides work.

This book explains how roller coasters are complex machines consisting of wheels, ramps, pulleys, and levers and examines how they are designed.

This book explains how the concepts of force, speed, velocity, mass, and friction work together during a roller coaster ride.

This book explains how the concepts of gravity, force, and energy work together during a roller coaster ride.

Describes the discovery, sources, unique characteristics, reactions, and significance of the chemical element molybdenum, and discusses the periodic table.

Examines the unique characteristics of chromium, its history, and how it is used.