Why do trains run on tracks?
7 February - 20 minsHow do trains work? We went to Union Station in Washington, DC to answer a whole wagonload of questions with Amtrak's Patrick Kidd.
A few years ago, we left our studio in Vermont to hop on the Amtrak Acela train that runs multiple trips per day between Washington, DC, New York City and Boston. But don't worry; we got off before the train departed! It was so much fun, we wanted to bring you that journey again!
Questions we're answering in this episode: How do trains work? What about electric trains? Steam trains? Bullet trains? Why do they have to go on tracks? How can trains go so fast even though they're so heavy? And why don’t trains have seat belts?
Download our learning guides: PDF |...
Series Episodes
Who invented the English language?
Where did the English language come from? Why do words have silent letters? Why do some people have accents? Why do some words sound similar? Answers to all of your questions about English and words with sociolinguist Erica Brozovsky, host of a PBS digital show called Otherwords. Download our learning guides: PDF | Google Slide | Transcript
34 mins
8 August Finished
Chameleons, jellyfish and ballerinas! Check out But Why Bites
For today’s episode, we’re doing something a little different! We’re going to be listening to our video series, But Why Bites! (Even without the video part, they’re really cool!) Every other week over on our YouTube channel, we answer one kid question in a short and sweet little video. You can find all of them at the But Why Kids channel while you enjoy this compilation of episodes that we’re calling a Big Bite.
14 mins
25 July Finished
Who created math problems?
Who created math problems? Why does one plus one equal 2 and not 11? Why do numbers go on forever? Why are numbers for counting? Why do you need math? If you love math, this is the episode for you. And if you hate math…this is the episode for you! We’re answering all kinds of questions and demystifying the science and beauty of the discipline of mathematics with Dr. Melania Alvarez, outreach coordinator for the Department of Mathematics at the University of British Columbia in Canada. She’s also education coordinator for the Pacific Institute for the Mathematical Sciences. And she loves all your mathematical questions! Stay tuned for a math puzzle you can solve during the episode! Download our learning guides: PDF | Google Slide | Transcript Math Question: There's a farmer who sells live chickens. He goes to three markets to sell them. At the first market, he sells half of his chickens, plus half a chicken. Then he goes to the second market, where he sells half of his remaining chickens, plus half a chicken. At the third market, he sells half of all his remaining chickens, plus half a chicken. And he is left with no chickens. How many chickens did he have at the start? (HINT: No chickens were harmed at any of the markets, and they were all fully alive when they were sold.) (Answer: 7 chickens)
29 mins
11 July Finished
Why do some people like spicy food?
Ever wondered why some spices burn your throat while others tickle your nose? Or why some of us live for spicy foods while others sweat at the mere thought of a habanero? How do pickles stay crunchy if they’re sitting in brine for weeks on end? And why do we have such different food preferences from our friends? We’re answering your food questions with chef and author Kenji López-Alt, author of the kids book Every Night is Pizza Night and co-host of The Recipe. Download our learning guides: PDF | Google Slide
28 mins
27 June Finished
Why do we need to use sunscreen?
It’s summer and that means slathering yourself with sunblock before you’re allowed to go run around outside. Not everyone loves that ritual: sunscreen can be cold or sticky. Sometimes it gets in your eyes, and it always feels like it’s time to reapply JUST as you’re about to jump in the water or go kick the ball. So, what’s the deal? Is it really all that important? We get the scoop from Dr. Jeff Yu, a pediatric dermatologist at Massachusetts General Hospital. He’ll help us understand: What is a sunburn? What’s a tan? How does sunscreen work? How do you protect your eyes? Download our learning guides: PDF | Google Slide | Transcript
22 mins
13 June Finished
Are horseshoe crabs…crabs?
How did horseshoe crabs get their names? Are they even crabs? And did they really exist before the dinosaurs? Early spring presents a unique opportunity to see these living fossils up close as they scuttle up to the shoreline along the Atlantic coast of the United States to mate and spawn. But Why traveled to Cape Cod to see horseshoe crabs up close. There we met up with horseshoe crab expert Sara Grady, who works for Mass Audubon. We learn all about these arthropods and answer questions like: Can humans eat horseshoe crabs? What’s with the pointy tails? Do they pinch? How long do they live? And what’s so special about their blood? Download our learning guides: PDF | Google Slide | Transcript
34 mins
30 May Finished
