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Amazing Cave Animals

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Host Jessi, a male co-host and Squeaks the robot rat get ready to visit their friend Sam the bat in his cave. Along the way they explain that a cave is a habitat, show real footage of an olm, a Mexican tetra and a cave spider, and point out that these animals have no eyes. They walk the viewer through why deep cave animals rely on smell and touch instead of sight, and invite the child to close their eyes and notice their own senses. The episode ends back in the studio as the hosts finish packing for the trip.

Umbrella, Umbrella

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Pocoyo, a small boy in a blue outfit, finds a red umbrella and sets out to discover what it is for, watched over by an off-screen narrator who talks him and the viewer through it. He opens and closes it, hides under it and plays with his friends Loula the dog, Pato the duck and Elly the elephant, trying the umbrella as a boat and a swing. When clouds gather and rain starts to fall, Pocoyo raises the umbrella and keeps everyone dry. The narrator wraps up by thanking the viewer and Pocoyo before saying goodbye.

Why Is It So Windy Today?

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A curious girl named Jessy and her purple sea monster friend Nessie set out to discover why it is so windy today after Nessie's red ribbon blows away. They ask talking trees, racing leaves and a cloud family, then reason that walking into the wind will lead them to its source. They find a giant pink balloon whose sneezing is causing all the wind, and they tie off his loose end with the ribbon to stop it. The wind calms, the balloon feels better, and Nessie ends up with an even nicer purple ribbon.

The Scientist Who Studied Bug Brains

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Two hosts and their robot rat Squeaks watch honey bees in a garden and then tell the true story of Dr. Charles Henry Turner, a scientist who proved that bugs can learn and remember. The episode explains his colored-box experiment, which showed bees can see color and return to where they found food, and notes that he was refused a university job because he was Black. It closes with the hosts wondering about their own bee questions and inviting children to experiment. Real bee footage and simple animations illustrate the science and Turner's life throughout.

Super Slugs

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Host Jessi and her robot rat Squeaks explore how a sea slug called the emerald Elysia can make its own food from sunlight. From a bright studio set, Jessi explains that plants and algae use chloroplasts to turn light into food, and that the slug keeps those tiny machines running after eating algae. Real footage of slugs, algae and ponds is mixed with simple animated diagrams. The episode closes with Jessi and Squeaks heading to the garden to pick tomatoes for a salad.

Animals That Eat Poop

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Host Jessi and her robot rat Squeaks explore why some animals, especially dung beetles, collect and eat poop. From a bright studio set, Jessi explains what beetles are, describes the dung beetle's horns, wings, and strong legs, and works through the mystery of the ball Squeaks saw one pushing. Using real footage and simple diagrams, she shows how nutrients pass from grass through cows into poop, which beetles then reuse for food and to feed their young. The episode ends with Squeaks eager to learn about more unusual animals.

Iceland: A Land of Ice and Fire

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Jessi, the host, welcomes back Squeaks, a robot rat, who shares photos from his trip to Vatnajokull National Park in Iceland. Together they figure out where he went and explore why this 'land of ice and fire' has both fiery volcanoes and freezing glaciers, using maps, diagrams and real photographs. They learn how volcanoes and glaciers form, how tectonic plates shape the land, and which plants and animals live there, such as moss and harbor seals. The episode ends with Jessi thanking Squeaks for sharing and inviting viewers to think about whether they would explore a volcano, a glacier, or both.

Where Else Can We Find Echoes?

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Nessy, a purple monster, and his friend Jessy spend the morning waiting for Great Granny Grandmonster to arrive by train for Great Grandmonster's Day. To pass the time, Nessy becomes curious about echoes and the two search a train station, a park and a hilltop before following the sound to a hidden valley full of echoes. Along the way they buy presents, gather flowers and help each other with a heavy wagon. The episode ends with the relative arriving to enjoy the valley and the pile of gifts.

All Dried Up

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Ms. Frizzle's class builds a desert diorama and Phoebe becomes convinced the desert animals need rescuing from heat, hunger and thirst. The magic school bus flies them into a real desert, where they watch a lizard, jackrabbit, tortoise and other animals cope with the harsh conditions on their own. A sudden rainstorm floods the land and, by morning, the desert blooms, showing how everything there is adapted to survive. The episode closes with a phone call in which a caller quizzes the bus about desert facts and asks after Phoebe.

In the Haunted House

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Carlos has invented an instrument for a school concert, but it makes only a 'loopy' sound and he cannot fix it in time. When the magic school bus overheats, Ms. Frizzle's class ends up spending the night in what turns out to be the Sound Museum, a spooky old house where they chase mysterious noises and learn that sound is made by vibration. Guided by their questions and a living descendant of the museum's founder, Carlos works out that his instrument needs to vibrate freely, strips it down, and finally produces the sound he imagined. The episode closes with a phone call to the show's producer that reviews how sound and hearing work.

Bot at the Museum

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Doug, a curious robot, wants to know why humans visit museums to learn, so his friend Emma and Uncle Forkrick take him to the Mega City Museum. They explore an early-machines room and try a pulley, walk through an immersive prehistoric jungle, and reach the dinosaur hall, where Uncle Forkrick worries the roaring T-Rex is dangerous. When it turns out to be a skeleton, everyone counts its 60 teeth, feels fossils and learns how dinosaurs looked and lived. Doug ends the trip understanding that museums let you touch, feel, see and hear things to learn about them.

Why Is the Moon Out During the Day?

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Jessy, a girl with glasses, and Nessie, a purple monster in pyjamas, disagree about whether it is day or night when Nessie spots the moon in a daytime sky and wants her bedtime story. Curious about why the moon and sun are out together, they call up to the moon, try an observatory telescope, and are lifted into the sky by their friend Hugh G. They discover the moon and sun are best friends playing hide-and-seek, which is why both can appear at once. As the sky finally darkens, Jessy begins Nessie's bedtime story about the moon.