1) What is the main purpose of a structure? a) To look nice b) To stay still c) To support a load 2) Which is a natural structure a) Tree b) Bridge c) Skyscraper 3) Which shape is the weakest? a) Triangle b) Square c) Circle 4) A structure that does not fall over easily is called a) Soft b) Stable c) Simple 5) What is one way to make a structure more stable? a) Make it taller b) Use a wider base c) Use bright colours 6) Which tool helps you measure the length of building materials? a) Hammer b) Screwdriver c) Ruler 7) Which is the materials is strongest? a) Paper b) Cotton c) Wood 8) What does compression mean? a) A squeezing force b) A twisting force c) A pulling force 9) What shape is often used in bridges because it is very strong? a) Triangle b) Circle c) Oval 10) A structure that holds up a roof is called. a) Column b) Foundation c) Shingle 11) Engineers often test their building plans to a) Break them b) Find and fix weak spots c) Make them more expensive 12) Why might a structure collapse over time? a) Because of repeated use b) Because of poor materials 13) What does a function mean in a structure? a) How tall it is b) What it is used for c) Who built the structure 14) The form of a column (pillar) is a) To hold the roof up b) Made of hard materials c) Thin and tall 15) The form of a house roof is a) Sloped to let water run off b) Wavy to collect rain c) Fill up holes to let in air

Grade 3 Structures Ontario Review

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