The youngest of readers can explore the inner workings of everyday inventions with this fascinating, fact-packed book. Beautifully illustrated in full color, this hardback reference guide explains the science behind different gadgets and technologies, from planes and bicycles to clocks and computers! Tricky ideas are set out in clear, easy-to-understand terms, with colorful and engaging artworks that really help to clarify concepts on STEM topics. It answers questions such as: - What makes bicycles go? - How does a spacecraft launch? - What makes a hot-air balloon go up? - What makes a clock tick? Finishing with a quiz to test their new knowledge, this is a fabulous introduction to machines for curious children aged 5+ and anyone who has ever asked "Why? ". ABOUT THE SERIES: Arcturus Publishing's Let's Explore! series encourages the youngest of readers to think about the world around them. Featuring vibrant illustrations and concise, easy-to-read text, these reference books are perfect for mini explorers!