This is an engaging series covering a wide range of topics at different reading levels. It has been created to appeal to children, reflecting the range of texts in the real world, from guidebooks to cookbooks.
This is an engaging series covering a wide range of topics at different reading levels. It has been created to appeal to children, reflecting the rang...
This science book looks at the enormous variety of machines in our world and how they function. Hands-on projects, such as making your own gears and belt drives, a pulley, a block and tackle, a can crusher, a water wheel, and an Archimedean screw, will help you to fully understand the principles behind them.
This science book looks at the enormous variety of machines in our world and how they function. Hands-on projects, such as making your own gears and b...
By inventing ways to travel on water, people have been able to see and trade with new lands, conquer new territories, fight great sea battles and enjoy new sports. This book will help you to understand why ships have played such an important part in human history. With the aid of cross-section illustrations and simple experiments to do at home, you will discover how vessels stay afloat, how a sail works, what keeps a submarine underwater, how a hovercraft skims on air, the elements of navigation, and much more.
By inventing ways to travel on water, people have been able to see and trade with new lands, conquer new territories, fight great sea battles and enjo...