Why does the moon change colors?
Have you ever noticed that the moon looks different at different times of the month? Not just the shape, whether it’s full and round or a tiny sliver – but the color also looks different sometimes. Ma...
13 Helmi 20243min
What happens if you put too much yeast in bread?
Most bread dough needs yeast to make it rise, so the bread can be light and fluffy when it bakes. But can you put TOO much yeast in bread? What happens if you do? Do you get a bread balloon? We asked ...
12 Helmi 20246min
Why do we use toothpaste?
Toothpaste is something that lots of people use to keep their teeth clean. It makes our mouths smell nice and fresh, but that’s not the only thing it does! So, why do we use toothpaste? We asked denti...
9 Helmi 20247min
What's the sourest thing in the world?
Most of us are familiar with the taste of something sour – that tart feeling that makes your eyes close and your facial features squint. Lemons, lime juice, kimchi are all sour - but what is the soure...
8 Helmi 20244min
What's inside teeth?
Our teeth are incredible chomping machines. Their strong outer layer helps us crunch carrots, nibble potato chips and chew bubblegum! But what’s inside of them? We asked dentist Dr. Jean Star to help ...
7 Helmi 20246min
Why don't pine trees lose their needles in the winter?
In the winter, most of us are used to seeing bare tree branches – but some trees, like firs, pines, and spruces, don’t usually lose their needles when it gets cold. We asked forest ecologist Diana Ma...
6 Helmi 20245min
Why do different countries have different flags?
There are 195 different countries in the world, and they all have different flags. Why is that? And where did flags come from? We asked flag expert Michael Green to unfurl the answers. Do you have a ...
5 Helmi 20247min
Why do we need punctuation marks?
If you open a book, you’ll see lots of letters that come together to make different words. Sandwiched in between the words are little dots, lines and squiggles called punctuation marks. But why do we ...
2 Helmi 20246min
