I Wonder Why (box set 20 books-paperback)

The ‘I Wonder Why’ series explores in a winning style the questions that children really ask about the world around them.
Its trusted question-and-answer format gives you all the fact you need in a fun engeging way.
I wonder why planes have wings.

Colourful , surprising and full of information, the I Wonder Why books have set thousands of young minds buzzing. I Wonder Why Planes Have Wings is the perfect introduction to transport, featuring SpaceShipTwo, hovering planes, supersonic cars and much more.

What do you want to find out? Clear, lively text answers all those tricky questions about how the world works, while friendly, funny cartoons add interest. With over 35 titles across a mind-expanding range of subjects, this is a series guaranteed to amaze and amuse.