The document defines and provides examples of different types of structures including shells, solids, frames, beam bridges, truss bridges, suspension bridges, and arch bridges. Beam bridges are flat and supported at both ends while truss bridges use a framework of joined beams. Suspension bridges hang from main cables anchored at both ends and can handle heavy loads. Arch bridges can withstand heavy loads by being supported by arches.

1. Shell structure Structure with a solid outer surface (which may be rounded or flat shape) and a hollow inner area 1.Egg

2. Solid Structure structure made of solid piece (or solid combination of pieces) of strong material 1.Hockey puck

3. Frame Structure consisting of a rigid arrangement of parts joined together 1.Wheel chair 2. Snow shoe

4. Beam bridge simple beam bridge flat and is supported at its two ends

5. Truss bridge Frame work of beams joined together

6. Suspension Bridge hangs between two ends .main cables are anchored in concrete

7. Arch Bridge Bridge supported by an arch or a series of arches

8. Suspension Bridge the purpose of a suspension bridge is because it is a really strong bridge and it can handle heavy loads

9. Truss bridge Purpose of a truss bridge is light weight but strong bridge

10. Arch Bridge The purpose of this bridge is it can with stand heavy loads