Structures
Identify strong and weak structures around us
What Are Structures?
A structure is something that has a definite shape and can support a load. Structures are all around us — buildings, bridges, tables, fences and even egg shells. Strong structures do not collapse easily.
Example
Strong vs Weak Structures
Strong: A triangle-shaped roof (triangles are very strong shapes)
Weak: A flat piece of paper standing up (it falls over easily)
Folding paper into a tube or triangle shape makes it much stronger!
Note
Remember
The three types of structures are: shell structures (like an egg), frame structures (like a window frame), and solid structures (like a brick wall). Each type has different strengths.
Key Vocabulary
StructureSomething with a definite shape that supports a load
LoadThe weight or force that a structure must carry
StableNot easily pushed over or collapsed
Frame structureA structure made of parts joined together like a skeleton
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Structure
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