Screws are everywhere! They help keep buildings together and help us move and lift things. Come inside this book for a fun and fascinating look at this simple machine. Kids will love the fun with screws section.
Young readers will be astounded by the tiny organisms that live in soil, their ecological roles, and how they adapt to living there. Children will learn the value of even the smallest bacteria and be amazed by the impact that soil degradation has on an entire ecosystem.
Pulleys help make up some of the most complicated machinery, from car engines to cranes. See up-close the different pulleys that help us move things and get us moving. Kids will love this wonderful look at pulleys, especially the fun with pulleys section.
Electrical engineering employs the largest number of engineers. This field of engineering covers everything related to electrical devices, systems, and the uses of electricity. This innovative book gives readers insight into this exciting profession and includes information on pioneers in the world of electricity, new technologies, and innovations. Budding engineers are introduced to the basic concepts of electronic circuitry and learn to build their own electric circuits.
This engaging and informative book explores the science of simple machines and how it relates to the exciting field of mechanical engineering. Readers will learn how mechanical engineers design and innovate machines we use every day. Readers then apply the engineering design process to tackle a design challenge of their own.
How Is Soil Made introduces children to the concepts of organic and inorganic parts of soil, the nutrient cycles of plants, and decomposition. Complex processes such as weathering, erosion, and deposition are also made easy to understand.
Let the European expedition begin! Comprised of more than 40 countries, the continent of Europe is home to some of the most interesting landforms on Earth. Explore Europe features an amazing array of this continent's many peninsulas, mountain systems, bodies of water, and biomes including the tundra, steppes, forests, and their animals.