Planets come in a huge variety of types, colours and sizes but what are terrestrial planets? And who knew there were things called dwarf planets?! The students of Deep Space High find out as they build their own galaxies! Follow the school in space at http://www.funkidslive.com/space/ Subscribe for more videos like this! Deep Space High is a series from Fun Kids - the UK's children's radio station. Tune in on DAB Digital Radio across the UK, on mobile and online at http://www.funkidslive.com Deep Space High: Galaxy Gala with support from the Royal Astronomical Society.