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The Macy’s Thanksgiving Day Parade is an American tradition. It’s been going since 1924. This year marks the 99th parade (it took three years off during World War II). It’s famous for elaborate floats and huge character balloons that bob above the streets as the parade marches forward. Millions of people watch the parade live in New York City each year, but many many more watch it on TV. And some of you have questions! How do they make such big balloons for the parade and how do they choose which characters to feature? And how do they hold onto the balloons with such tiny strings? And, more generally, how do balloons float? What’s helium got to do with it? But Why visits the Macy’s Studio workshop in New Jersey to see how the magic happens!

What’s your favorite color? Where do colors come from?Why do people see colors? Does everyone see colors the same way? How many colors are there in the world? We learn about colors with Kassia St. Clair, the author of a book called The Secret Lives of Color. We talk about the science of color as well as all the ways color and culture are intertwined.

Who invented candy? Why is it so sweet? Why does hard candy melt in your mouth? How are candy corn, gummies and nerds made? What makes pop rocks pop? We talk with traditional candy makers at Sticky in California and Hercules Candies in New York about how these sweet treats take their shape. And we get a little reminder about why we can’t eat sugar all day, every day.

Why are horses so big? Why do horses have tails and manes? How do their legs move? Are their bones in their hooves? What do they eat and how do they run and jump? We tackle those questions and more in this episode all about horses. We’ll also learn a little bit more about the unique horses in Iceland, where there’s a strict ban on horses coming in from other countries. But Why visited riding instructor Sonja Noack at Hestasnild, a riding school in Iceland, to get answers to all your equine questions.

Volcanoes have been erupting on Earth for BILLIONS of years, and they’re still creating new landscapes today! Volcanoes can seem mysterious and scary, but people all over the world have learned to live in close proximity to active volcanoes. Today we answer questions you’ve sent us about how they form, how they erupt, what magma/lava is, and how volcanologists work to predict when they might erupt. Our guest is Freysteinn Sigmundsson, a volcanologist and professor at the University of Iceland.