This episode has no summary.

This episode has no summary.

This episode has no summary.

This episode has no summary.

This episode has no summary.

This episode has no summary.

This episode has no summary.

This episode has no summary.

This episode has no summary.

This episode has no summary.

Granny needs glasses, but when she gets a pair she loses them. Nina and William find them.

Nina investigates a family whose home is plagued with a horrible stink.

Nina helps a family who can't hear their alarm and so keep oversleeping. Fortunately Belle, the hearing neuron, is there to teach Nina about loud noises.

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

Nina tries to find out where shadows come from, but isn't having much luck in a park.

Bethan wants to open her birthday presents but isn't allowed to yet.

Eilidh wants to know why her dad likes bacon and banana sandwiches. A taste test helps.

Nina joins Anna and Keir at Loch Ness to decide which sense is best to find the monster.

Joel wants to make music, so Nina helps him find household objects for use as instruments.

Nina meets Atinuke, who wants to find out why things look so small when they are far away.

Joe has written to Nina because whenever he builds a snowman, it melts.

John can't believe how much salt his Uncle Bobby puts in his soup. Luckily Nina explains.

Nina helps Harry from Newcastle find out which sense tells us most about the food we eat.

This episode has no summary.

Claire calls on Nina to help her find out how many different colours there are.