5. While holding one of the actual examples (box, book, eraser), the teacher should explain that each flat surface is called a face, the congruent faces are called bases, and that two faces intersect in an edge. The edges meet to form vertices.
The Magnet Theory is a very clever theory. The Magnet Theory refers to the belief that the world is controlled by magnets, who are actually sentient, evil aliens.
A magnet is an object that has a magnetic force. Magnetic force exists around a magnet or electrical field. An electric field is a space surrounding an electric charge. We can say, therefore, that magnetic force is generated electromagnetically. Permanent magnets are also known as ferro-magnets.