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.
Claire calls on Nina to help her find out how many different colours there are.
Granny needs glasses, but when she gets a pair she loses them. Nina and William find them.
Jessica and Lewis want to know why their baby cousin can't talk. They try to get by without talking to find out what speech means to us.
Aine asks Nina how to make honey. They watch a film of bees at work to understand.
Eden doesn't know why his dog keeps hiding things. With Ollie and the other Neurons' help, they try to sniff out the answer.
Belle, the hearing neuron, shows Nina why windy days are so noisy. They discover how moving air creates sounds.
Nina takes Molly on an assault course. Felix shows them that, without toes, they could hardly do anything.
Nina investigates how space rockets work with the help of Belle, her hearing neuron. Explorers Hamnah and Sulaiman visit Nina in her workshop and discover that space rockets push gas out the bottom which makes them go up, into the sky. Next they visit the National Space Centre in Leicester to see some rockets, before they launch their very own space rocket!
Nina investigates what the Grand Canyon is with the help of Luke, her sight neuron. Explorers Ronnie and William visit Nina in her workshop and discover that the Grand Canyon is a really, really big place in America that has a river running through it. Next they visit the Grand Canyon and see for themselves just how big it is.
Nina investigates how sand dunes are made with the help of Felix, her touch neuron. Explorers Jamila, Johanna and Mae visit Nina in her workshop and discover that sand dunes are made by the wind. Next, they visit Portrush in Northern Ireland to see a really big sand dune for themselves and they learn that sand dunes move backwards very slowly. Lastly, they find out that plants on the top of the sand dune stop the sand dune from moving.
Nina investigates how we can live in space with the help of Bud, her taste neuron. Explorers Evie and Flynn visit Nina in her workshop and discover that astronauts eat special dry food in space. Next, they visit a space centre in Belgium and back in Nina's workshop, they meet an astronaut who has been to space three times.
Explorers Kaiden and Tyler visit Nina in her workshop and, with the help of Luke, her sight neuron, discover that the Earth is covered in big plates of rock that move around very slowly, sometimes pushing together and squashing up to make mountains. Then they visit Beinn Eighe mountain in the Scottish Highlands and take a closer look on a helicopter ride.
Nina investigates what volcanoes are - with the help of Luke, her sight neuron and Belle, her hearing neuron. Explorers Lily and Rebekah visit Nina in her workshop and discover that volcanoes erupt and hot, red liquid called lava comes out and makes the volcano a cone shape. Next they visit a metal works and see very, very hot metal which looks just like lava. Last, they make their own volcano and find out that lava pushes up out of the volcano because it has bubbles in it that are trying to get out.
Nina investigates how the Giant's Causeway was made - with the help of her touch neuron Felix. Explorers Adam, Blane and Zach visit Nina in her workshop and discover that the Giant's Causeway is a place with very special rocks in Northern Ireland. They visit it and find out that hot rock cooled down slowly and cracked into special shapes to make it.
Nina investigates what planets are near us in space - with the help of Luke, her sight neuron. Explorers Dylan and Ewan visit Nina in her workshop and discover how many planets are in the solar system. Next they visit Tenby beach in Wales where they find out how far apart the planets are. Lastly they learn about how the planets move around the sun in an orbit, pretending to be planets themselves.
Nina investigates why rivers are wiggly - with the help of Belle, her hearing neuron and Felix, her touch neuron. Explorers Amelia, Patrick and Radiyya visit Nina in her workshop and discover that rivers move rocks and sand. Next, they have a go on a river rapids ride and find out that water moves fast and slow at different places. Lastly, they find out that the fast and slow water is what makes a river change shape and makes it wiggle.
Nina investigates how people find out about other planets - with the help of all her sense neurons. Explorers Nomi and Oliver visit Nina in her workshop and discover that we can send remote control vehicles to other planets. Next they visit a Mars Rover and they find out why it has to be able to see for itself when it's way up on Mars.
Nina investigates how cliffs were made - with the help of her sight neuron, Luke, and her hearing neuron, Belle. Explorers Ben, Olivia and Sonny visit Nina in her workshop and discover that some cliffs are made from chalk, and chalk is made from crushed sea shells. Next they visit the Needles on the Isle of Wight to see how waves have worn away the rock to make big cliffs.
With the help of Luke, her sight neuron, Nina investigates why we have night and day. Explorers Logan and Sophie visit Nina in her workshop and discover that the sun looks like it moves across the sky during the day. Next they have a ride on a fairground carousel and learn that it is we that move, not the sun. Lastly they find out that the Earth tilts and that is why we have seasons.
Nina investigates how we know about dinosaurs - with the help of Luke, her sight neuron and Felix, her touch neuron. Explorers Jonathan, Max and Sian visit Nina in her workshop and discover that when dinosaurs died some of them became rocks which we call fossils. Next they visit a beach and see fossils for themselves. Lastly they visit a dinosaur park and find out what we can learn from dinosaur footprints.
Nina investigates why we live on planet Earth - with the help of Felix, her touch neuron. Explorers Hannah, Maha and Matthew visit Nina in her workshop and discover that we can live on Earth because it has lots of food and water for us and it's not too hot or too cold. The planet Mars is really, really windy so next they stand in front of a big wind fan to see what it would be like to live on Mars.
Nina investigates why some rocks are stripy - with the help of Luke, her sight neuron. Explorers Alfie, Christy and Lilyanne visit Nina in her workshop and discover that some rocks are different colours because they have something called minerals in them. Next they visit Alum Bay in the Isle of Wight and see big stripy rocks. Lastly they find out that the rocks were made in layers.
Nina investigates what a geyser is - with the help of Ollie, her smell neuron. Explorers Alex and Michael visit Nina in her workshop and discover that geysers are big shoots of water that come up out of the ground. They visit a really famous geyser - Old Faithful in Yellowstone Park, America - and they find out that trapped steam is what makes the water shoot out.
Nina investigates whether Loch Ness has always looked the same - with the help of Felix, her touch neuron. Explorers Caela, Cara and Max visit Nina in her workshop and discover that Loch Ness used to be completely covered in a massive lump of ice called a glacier. Next they visit Loch Ness and see the scratches and lumps of rock the huge glacier left behind.
Nina investigates why the moon is sometimes a different shape - with the help of Luke, her sight neuron. Explorers Hannah, Oliver and Reiann visit Nina in her workshop and discover that light from the sun only shines on one side of the moon. Next they visit Paisley Observatory and see the moon for themselves. Lastly they find out that the moon moves around us and that's why we see different shapes at different times.
Nina investigates how caves were made - with the help of Belle, her hearing neuron. Explorers Joshua, Parisa and Raymond visit Nina in her workshop and discover that water can dissolve things. Next they go to a really big cave where they see different types of rock and they make their own cave by dissolving sugar.
Nina investigates what shooting stars are - with the help of Luke, her sight neuron. Explorers Amy, Jack and Leon visit Nina in her workshop and discover that shooting stars aren't stars at all, they're meteors. Next they visit a dark sky park and see shooting stars in a planetarium. Lastly they find out that when shooting stars land they make craters, like the ones visible on the moon.
Nina investigates how coal was made - with the help of Ollie, her smell neuron. Explorers Cameron, Jaydan and Mia visit Nina in her workshop and discover that coal is a rock which is made from old trees and plants from many, many years ago. Next they visit a real coal mine to see how coal is collected from underground and how scientists know where the coal is.
Nina investigates how we know the Earth is round - with the help of Luke, her sight neuron. Explorers Charlie, Katie and Zack visit Nina in her workshop and discover that even though the Earth looks flat it's actually curved. Next they release a really big balloon that goes way up into the sky to show that the Earth is round. Lastly they travel around Nina's big inflatable Earth and find out that if you go all the way round in the same direction, you come back to where you started from.
Nina investigates what deserts are - with the help of Felix, her touch neuron. Explorers Abbie and Luca visit Nina in her workshop and discover that deserts are really hot, dry places. Next they visit Death Valley in America and see how the heat has dried up all the water and they learn that the sun makes the ground warm, but when it's night time deserts are very cold.
Nina investigates why astronauts float in space - with the help of Felix, her touch neuron. Explorers Marty and Phalgun visit Nina in her workshop and discover that gravity is what keeps our feet on the ground. Further away from Earth, way up in space gravity isn't as strong and so things float. Then they have a go at indoor skydiving and feel what it's like to float.
Nina investigates how waterfalls were made - with the help of Belle, her hearing neuron. Explorers Maya and Ollie visit Nina in her workshop and discover that waterfalls are made from layers of hard and soft rock. Next they visit a waterfall in Wales and find out that it was made because the soft rock wears away quicker than hard rock.
Experimenters Charlotte and Lennon visit Nina in her lab and discover that when we move we push through the air and it feels windy. Next they visit the Sir Chris Hoy Velodrome in Glasgow, and meet a cyclist to see how he pushes through less air when he cycles fast. Finally, they do an experiment to find out why cyclists cycle in a line.
Experimenters Emily and Marzouq visit Nina in her lab and discover that curling is a sport played on ice. They also find out that things can slide faster on wet surfaces. Next, they go to a curling rink and have a go at sliding for themselves. Finally, they find out how curlers can slide and stop on the ice.
Nina and her Experimenters learn that footballers play as a team, and that it helps if they make a plan to cover different areas of the pitch, and pass the ball between them. Finally, they do an experiment to discover why the goalkeeper is an important member of the team.
Nina investigates how we can spin and turn faster - with the help of Felix, her touch neuron. Experimenters Amy and James visit Nina in her lab and discover that there are different ways of spinning and that we spin around an invisible line. Next, they visit a champion trampolinist to see him doing some amazing somersaults. Finally, they have a go at spinning for themselves to find out how scrunching your body in helps you turn faster.
Nina investigates how we can get better at climbing - with the help of Felix, her touch neuron. Experimenters Evie, Sonny and Will visit Nina in her lab and discover that we use our arms and legs to climb and that our legs are usually stronger than our arms. Next, they go to a climbing wall to meet a para-climbing champion and see how she uses her weight to help her climb. Finally, they have a go at climbing themselves to find out how to stay steady and climb better.
Nina learns about what sports players eat and drink with the help of Bud, her taste neuron, as well as finding out what it takes to become a rugby player.
Experimenters Adam, Maha and Rani visit Nina in her lab and discover what happens to people's breathing when the exercise.
The scientist investigates how to start faster in a race, with the help of Belle her hearing neuron.
Nina investigates how we swim - with the help of Felix, her touch neuron. Experimenters Nina and Olivia visit Nina in her lab and discover that we use our arms to pull us through the water when we swim. Next, they have a go at swimming themselves and find out that our legs push us through the water. Finally they meet some swimmers and see that they use their arms and legs in different ways for different strokes.
Nina, Amna, Katie and Rachael visit an athletics stadium to meet a long jumper and see how he can launch himself so far.
Experiments Grace and Sultan visit Nina to discover about the game of snooker, and they find out how the balls move when they bump into each other.
Nina investigates why we bend our knees when we land and experimenters Grace and Imogen meet a gymnast.
Nina learns how high divers make such a small splash when they hit the water with the help of Belle, her hearing neuron.
Experimenters Brandon and Ore visit Nina in her lab and discover that it's easier to catch big balls than small balls. Then, they visit Edgbaston cricket ground and meet some cricket players to find out about catching and how they can tell where the ball is going to land. Finally, they have a go at throwing for themselves and discover how to throw as far as they can.
Experimenters Connor and Sarah-Louise visit Nina in her lab and discover what happens to a ball when it bounces. Next, they meet some basketball players and find out that it makes a difference if you bounce balls on a hard or a soft floor. Finally, they do an experiment to find out what's inside a basketball and why some balls bounce better than others.
Experimenters Caleb, Kennedy and Sarah visit Nina in her lab. They discover that we give computers instructions so that they know what to do, and that the instructions are called code. Next, they do an experiment and find that the computer code can be like a really long list. Finally, they look for patterns in the code and have a go at coding for themselves!
Experimenters James, Peter and Zack visit Nina in her lab. They discover that lots of different things like tablets and phones can use the internet and that all the videos and pictures that we see are kept on special big computers. Then they do an experiment to show how all the information on the internet zooms about. Finally, they go to an exciting place and learn how we search for things on the internet.
Experimenters Leanna and Selma visit Nina in her lab. They discover that there are lots of different things that you need to do when you're driving a car and that some cars are controlled by computers. Next, they go for a trip on a special bus that can drive by itself and find out how it knows where to go. Finally, they do an experiment to see how sensors work and how they help driverless cars drive safely.
Experimenters Colin and Ethan visit Nina in her lab and discover that 3D printers print real objects in lots and lots of layers. Next, they have a go at making objects with lots of layers for themselves, just like a 3D printer. Finally, they go to see 3D printing in action and find out how the printer knows what to do.
Experimenters Koby and Steven visit Nina in her lab and discover that animation is lots of pictures put together. Next, they have a go at making a funny animation for themselves. Then they go to an amazing animation studio and find out that animators have a special way of animating characters. Finally, they do an experiment to see how computers make the characters look so real.
Experimenters Ethan and Eva discover what the walls of an igloo are made from.
