Follow Maddie Moate as she 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 adventures – from finding missing parts of a toy car, to preparing a birthday picnic. And there are puzzles for readers to solve too, including a spot the difference, a maze and a word ladder.The marvellous machines featured in this book range from objects in the home (including a smart speaker, a microwave, a dishwasher, a fridge and a toilet!) to machines in the workplace (a dentist's chair, an X-ray machine, a digger and a fire hose), as well as in the playground, at the shops, on holiday and beyond.Written and researched by Maddie Moate, the star of CBeebies Do You Know?, this book is packed with awesome facts and key STEM concepts - perfect for nurturing curious minds aged 6 and above.