inventions

Traces the history of inventions from the making of fire to microprocessors, and beyond to the space stations of the future.

Answers a wide variety of questions about the invention of common household items.

Describes some hi-tech gadgets, including an alarm clock that flies around the room, a reading robot, an electric bicycle, and a shark robot.

Using his astounding scientific ability-plus lots of grocery boxes, duct tape, Alex creates another spaceship. This time he'll go to Jupiter to escape his pesky little brother.

The inventive young MacDonald builds a new gizmo in the old barn that enables him to combine familiar animals in novel way.

Written like an annotated timeline, this book focuses on 180 key events and people that have changed our world.

Still reduced to the size of insects, Andrew, Judy, and the robot, Thudd, go to a pond, where they encounter dragonflies, moss animals, and fierce larvae in an attempt to learn why frogs are disappearing throughout the world.

Provides instructions for making seventy-five contraptions that demonstrate friction, gravity, energy, motion, and other principles of physics and explains how to think like an inventor.

Examines over forty ideas crucial to the survival of the Inuit people in the Arctic regions including waterproof clothing, food, hunting practices, and building shelters.

Describes what life in America was like in the late nineteenth and early twentieth centuries.