This natural material comes from trees and is commonly used in building houses.
What is wood?
This three-sided shape is one of the strongest shapes used in building structures.
What is a triangle?
Bridges help us cross over this.
What is water/a river/a road?
This is a push or pull that can affect structures.
What is a force?
This famous structure in Paris, France is a tall iron tower named after its designer.
What is the Eiffel Tower?
This material is made from melted sand and is used for windows in buildings.
What is glass?
This 3D shape has a square bottom and triangles for sides that meet at a point.
What is a pyramid?
A drawbridge can do this to let boats pass underneath.
What is open/raise up/lift?
This force pulls objects toward the center of the Earth and can cause structures to collapse.
What is gravity?
This structure in Toronto is one of the tallest free-standing structures in the world.
What is the CN Tower?
This strong building material is made from a mixture of cement, sand, gravel, and water.
What is concrete?
This curved shape looks like half a circle and is used over doors and windows.
What is an arch?
This part of a bridge supports weight from above and transfers it to the ground.
What are pillars/piers/supports?
When a structure doesn't tip over even when pushed, we say it has this quality.
What is stability?
This structure built by ancient Egyptians has a pyramid shape and was a tomb for pharaohs.
What are the Pyramids of Giza?
These metal fasteners hold pieces of wood together in many structures.
What are nails/screws?
This 3D shape often has a square bottom and triangles for sides that meet at a point.
What is a pyramid?
To prevent a tower from falling over, builders make sure this part is wide and strong.
What is the base/foundation?
This type of force squeezes or pushes materials together in the lower parts of structures.
What is compression?
This dome-shaped home was traditionally built by Inuit peoples using blocks of snow and ice.
What is an igloo?
This flexible building material was used by Indigenous peoples to make waterproof coverings for canoes and shelters.
The shape of an egg is very strong because it distributes pressure in this way.
What is evenly/all around?
The Golden Gate Bridge is an example of this type of bridge that hangs from cables.
What is a suspension bridge?
When a material can bend without breaking and return to its original shape, it has this quality.
What is flexibility/elasticity?
This famous bridge in San Francisco is known for its orange-red color and often has fog rolling under it.
What is the Golden Gate Bridge?