The world around us never ceases to inspire questions about its origins, its processes and the changes we see happening every day. This book sets out to answer the kind of questions that have fascinated children (and adults!) for generations. Why does the sun set? How are snowflakes made? Why is the sea salty? Why do volcanoes explode? Each fun question leads to an important scientific fact, conveyed in language thats easy to relate to and illustrated with vibrant cartoon-style illustrations.