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 objects without even touching them—but how is that possible? This video breaks down how magnetic fields work ...

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 ...