What makes a motorcycle go? How many different styles are there? When were the first motorcycles built? And why are they so exciting to race? Read about all kinds of different motorcycles, from scooters to awe-inspiring superbikes. Fold out enormous pages to discover even more about cruisers and dragster bikes.
You will discover: how to change the shape of a solid; what the hardest natural solid is; how chocolate is made
What is triangle? Learn to recognize patterns and shapes!
Find out about why we tell time and how we tell time - on both analog and digital clocks! Dozens of fun clock faces show the hours and the minute, ready for telling. And that's not all " you can calso learn about all the big and little chunks of time we use, from seconds to millennia.
Answers demanding questions in an unrivalled child-friendly and informative style about inventions'