Paul's books cover a wide range of subjects, from whether the Romans ate crisps to how to build the world's best skatepark, but he writes mostly about sport. Whether you are interested in swimming, cycling, snowboarding, surfing or another sport, Paul has probably written something that will inspire you to get out and give it a try. Paul writes in a shack by the beach, which he shares with his one-eyed surf dog, Daisy. Jess Bradley is a writer and artist for The Phoenix Comic, a writer for The Beano and has illustrated several children's books. A Day In The Life Of A Poo, A Gnu and You, illustrated by Jess won the 2021 Blue Peter Award for Best Non-Fiction. Jess lives in Torquay with her husband and son and enjoys drawing in her many sketchbooks, playing video games, reading and watching scary films.

• 1: FORCES1: WHAT ON EARTH IS PHYSICS?1: FORCES1: GRAVITY1: WEIGHT LOSS FOR ASTRONAUTS1: Weight1: THE SAD STORY OF THE SANDPAPERED SKATEBOARDER1: Friction1: TROUBLE WITH SUNKEN TREASURE Buoyancy1: TREASURE CHESTS1: Wedges and levers1: RESCUED FROM THE ROCK FACE!1: Pulleys1: THE HUMAN CANNONBALL RETURNS TO EARTH Air resistance1: MEET THE MAGNETS1: Magnetism1: EXPLORING MAGNET EARTH1: Magnetic poles1: CAR CATASTROPHE!1: Magnetic attraction and materials1: HOW A MAGLEV LEVS1: Magnetic repulsion1: Energy and light1: ENERGY1: Types of energy1: THE FASTEST THING IN THE UNIVERSE Light energy, air resistance1: DAWN PATROL1: Sunlight1: THE DIFFICULTY OF FINDING A MATE (IF YOU’RE A FIREFLY)1: Light sources1: TOKYO’S TRANSPARENT TOILETS Transparency and opacity1: ISAAC NEWTON AND THE SCIENCE OF COLOUR Colour and light1: HOW TELESCOPES CHANGED THE UNIVERSE Magnification1: THE MIRROR-IMAGE EXPERIMENT Reflections1: Sound science1: SOUND1: What is sound?1: THE BANG THAT WAS HEARD AROUND THE WORLD1: Sound volume1: CALLING (REALLY) LONG-DISTANCE1: Sound and distance1: INSTRUMENTS TO MAKE AT HOME1: Pitch1: MEET THE FOLEY ARTIST1: Making sound effects1: Electricity1: WHAT IS ELECTRICITY?1: Electricity1: THE ELECTRON RACETRACK1: Electrical circuits1: DANCING ON THE ELECTRIC CARPET1: Static electricity1: PEDAL HARDER, THE LIGHTS ARE GOING OUT! Electrical energy1: Glossary1: Index