In this curiosity-busting factbook, Maddie Moate takes a look inside everyday objects and machines – from fridges to fire engines!Starting in the home, you'll find out how microwaves heat your food and how smart speakers react to voice commands. Then take a trip to the supermarket and discover how the checkout works, before heading to the playground and learning why a roundabout makes you feel dizzy!As you learn about difference machines and objects, you'll go on four mini ad...
