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Guts: The Digestive System
Introduces the human digestive system, explaining how it works to break food down into nutrients and describing the role of each part or organ.
Wheels and Axles at Work
Readers likely use the wheel and axle machine every day in the form of doorknobs and faucet handles, but this fascinating invention is often overlooked. This book helps readers understand how the wheel and axle simple machine is all around them and helps build compound machines. Approachable text provides lasting knowledge about the forces that make these devices work. Bright full-color photographs including a picture gallery showing familiar objects using this simple machine aid readers in comprehending just how these mechanisms make tasks easier. The concepts in this book enhance a variety of elementary STEM curricula.
Wedges at Work
A wedge is simply a triangular tool made of two inclined planes, but it can take on many complex jobs. These include cutting objects into pieces, holding objects in place, and lifting heavy loads. When attached to a handle, a wedge becomes a knife, ax, or shovel that makes even more tasks easier. This volume gives readers a lasting understanding of the forces that make these devices work. The concepts in this book bolster STEM curricula and feature eye-catching photographs, age-appropriate text, and a picture gallery of real-world wedges allowing readers to understand the continued importance of this simple machine in their daily lives.
Levers at Work
From playing on a seesaw to swinging a baseball bat, levers are a simple machine that can be found everywhere. However, it may not be easy for readers to know exactly how these common devices work. This book is here to help with captivating full-color photographs, including a gallery of familiar objects that use levers. Readers learn through concepts aligned with elementary STEM curricula that levers consist of a plank that pivots on a fulcrum and there are three classes. Approachable text and relatable examples will help readers grasp ways to recognize and use these important mechanisms in their daily lives.
I Am Jewish
Introduces the ancient religion of Judaism through the eyes of a Jewish child living in St. Louis.
Bones
An introduction to the bones found in the human body.
Pulleys at Work
What do sailboats and theater curtains have in common? Your readers will learn the answer; it's pulleys. The pulley plays an important role in modern daily life. This simple machine makes raising and lowering heavy loads much easier. From fixed pulleys to moveable and compound pulley systems, readers gain an in-depth understanding of the forces that make these machines work. Readers learn the STEM concepts behind how pulleys have vital roles in compound machines, from allowing cranes to work on buildings to giving bicycles their smooth ride. Eye-catching photographs including a picture gallery of common objects that use pulleys give readers an in-depth understanding of these revolutionary devices.
Screws at Work
The screw is a simple machine that changed the world in remarkable ways. In the 1440s, the screw was central to the success of the printing press, which allowed scientists and great thinkers around the world to share ideas. Today, screws are necessary to hold a variety of objects together, from chairs to light bulbs. They also manifest in the forms of ceiling fans and airplane propellers. With approachable text and an image gallery of recognizable objects that use this simple machine, this book allows early readers to understand the forces and STEM concepts that make screws vital to the modern world.
Gardening Ants
Describes the physical characteristics, behavior, and habitat of the gardening ant.
Goods and Services
Describes how goods are manufactured, marketed, and sold to the consumer.
