1:B - Scientists think that there are a whopping 200 billion trillion stars. That’s the number of stars in our galaxy, the Milky Way (about 100 billion), multiplied by the number of galaxies (about 2 ...

Magnets can move metal objects without even making contact—but how do they do that? In this video, you’ll learn how magnetic fields are formed, how poles attract and repel, and where we see this ...

Nick discovers a way to steer their magnetic canoe around magnetic rocks. In Magnetic Fields, every red and blue object is magnetic. Nick and Sally learn how to use this knowledge to help them steer ...