The Sun is mostly made of two elements – hydrogen and helium. They are constantly bashing together and breaking apart and these collisions create energy – a LOT of energy! With energy comes heat. At the core of the sun, all of this action creates immense pressure and temperature, which can reach more than 15 million degrees celsius! The sun is made up of plasma – that’s a gas-like state containing particles which have been blasted into pieces! Follow the school in in space at ******