Детали книги
Формат
Kindle
Страницы
40
Язык
Английский
Опубликовано
Oct 6, 2015
Издатель
Harpercollins
ISBN-10
0062430904
ISBN-13
9780062430908
Описание
Machines are everywhere!
They help make work easier, like when you need to lift something heavy or reach way up high. Some machines are so simple that you might not think of them as machines. There are six simple machines: the lever, the wheel and axle, the pulley, the ramp, the wedge, and the screw.
Can you adjust a seesaw to lift an elephant? What happens when you combine two or more simple machines? Read and find out!
They help make work easier, like when you need to lift something heavy or reach way up high. Some machines are so simple that you might not think of them as machines. There are six simple machines: the lever, the wheel and axle, the pulley, the ramp, the wedge, and the screw.
Can you adjust a seesaw to lift an elephant? What happens when you combine two or more simple machines? Read and find out!
Жанры
Детская литература
Наука и технологии