weak nuclear force

The weak nuclear force is a type of force that affects the way things are put together. It is a lot like a glue or a magnet, but it only works on the tiniest parts of matter. All matter is made up of tiny parts called atoms, and atoms are made up of even tinier parts like electrons and protons. The weak nuclear force helps hold the protons and electrons together in an atom. It is called "weak" because it is not as powerful as other forces, like gravity.