Sssh, listen... what can you hear? From musical harmonies to sonic booms, discover the science of sound and how we hear things. Why is most of space completely silent? Why does a recording of your voice sound strange? And what do bats, dolphins and a boat full of scientists have in common? The answers are all in this book, with lots of flaps to lift and simple experiments to do at home.
A bright and engaging introduction to protecting our planet, with tips and ideas to show children that even small changes can make a big difference to our world.