Interestingly, Princeton University engineers have created innovative 3D structures from a single piece of material by combining the art of paper cutting and folding. They have developed 3D structures ...

Faces - A face is a flat surface on a 3D shape. For example a cube has 6 faces. Edges - An edge is where two faces meet. For example a cube has 12 edges. Vertices - A vertex is a corner where ...

Angela: A 3D shape is a shape with three dimensions ... For example, 'the conker is a spiky sphere'. Leaves are very interesting to explore. there are many different kinds of leaf and they ...