Hot and Cold

Nina looks at different household inventions and finds out how they work. With the help of her trusty neurons she examines the items to answer children's questions.

Felix the touch neuron is helping Nina answer the question: How does a flask work? Joined in her workshop by Sophie and Megan, Nina takes apart a thermos flask and looks inside. Afterwards they all don their hats and scarves and head off somewhere very cold that uses the same science as a flask. If you want to find out about vacuums and make your very own flask then tune into today's exciting episode.