Fun science for pre-schoolers. Claire from Glasgow asks Nina to help her find out how many different colours there are. Painting a rainbow is a good way to start. Show more

Show for preschool children. Atinuke wants to know why things look small when they are far away. Nina and Luke, the sight neuron, answer the question. Show more

Fun science for pre-schoolers. Joe has written to Nina because whenever he builds a snowman, it melts. Nina visits the mountains of Andorra to learn about staying cool. Show more

Fun science for pre-schoolers. John from Paisley can't believe how much salt his Uncle Bobby puts in his soup. Nina shows John how to do a taste test. Show more

Show for preschool children. Roddy wants to know if we all smell different, and Nina and her Neurons are on hand to help. Show more

Show for preschoolers. Nina tries to find out where shadows come from, but isn't having any luck. She heads off to Spain where there's lots of sunshine and hopefully shadows. Show more

Show for pre-school children. When Emma from the Yorkshire Dales asks Nina to find out where stars go during the day, she needs help from Luke, the sight neuron, to find out. Show more

Science show for preschool children. Roddy wants to know if we all smell different, and Nina and her Neurons help with a smell treasure hunt. Show more

Show for preschool children. Nina travels to Spain to help Ella and her friends find their way through a maze using their different senses. Show more

Show for pre-school children. Luke from Newcastle has had enough of his dad's trumpet practice, so Nina comes to the rescue - with some help from Belle, the hearing neuron. Show more

Science fun for preschool children. Nina travels to Andorra to help Jordan find out why snow is soft but a snowball is hard. Felix, the touch neuron, helps them. Show more

Show for preschool children. Nina helps Sam from Morecambe find out what eyebrows are for, and what eyebrows can tell us about what people are feeling.

Show for preschool children. Nicole wants to know why we cook food. A visit to the sensory garden to gather herbs leads to her and Nina trying to make a pizza. Show more

Show for pre-school children. Lucy from Edinburgh wants to know why people cannot taste when they have a cold. There is more to tasting than just using the tongue. Show more

Show for pre-school children. Nina goes to Spain to meet Jessica and to find out how we know when we need to use the toilet. Then she heads off sightseeing. Show more

Fun science for pre-schoolers. Nina visits Eve to help her carry out a challenge. Eve's mum wants them to attempt to discover the secret she is planning. Show more

Show for pre-school children. Granny needs glasses, but when she finally gets a pair she loses them. Nina and William decide to find them. Show more

Show for pre-school children. Nina visits a family whose home is plagued with a horrible stink. She finds out how we smell things and sniffs out the problem. Show more

Show for preschool children. Nina helps a family who can't hear their alarm and so keep oversleeping. Show more

Show for preschool children. Corin asks Nina why tongues are wet, and with a few experiments they discover the reason.