Plato associated the hexahedron with earth, because these clumsy little solids cause dirt to crumble and break when picked up, in stark difference to the smooth flow of water
The hexahedron is a platonic solid consists of 6 congruent squares.
It has 12 edges and 8 vertices. At each vertex 3 faces meet.
This is the second smallest platonic solid. It's a cube.
It has 11 possible nets:
To view the 3D version:
https://www.mathsisfun.com/definitions/hexahedron.html
How to make the net: