Strong and Stable Structures Grade 3

What is the purpose of a structure?

• to look nice

• to be tall

• to hold a load

• to give shelter

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What is the load in this picture?

• the grass

• the kid

• the chair

• the drink

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What is the load in this picture?

• the cats

• the cat tree

• the ladder

• the scratching post

What type of creature built this structure?

• otter

• blue heron

• turtle

• beaver

What type of creature built this structure?

• bird

• raccoon

• wasp

• termite

What is stability for a structure?

• its ability to be balanced and stay in one spot

• its ability to stand tall

• its ability to absorb wind and reflect rain

• its ability to resist paint fading

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If force is applied to the side of a block tower, what will likely happen?

• it will get taller

• it will become wider

• it will fall over

• it will be stronger

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What is the purpose of struts and ties?

• to build more detail on the building

• to add shelter to a building

• to act as a pulley system

• to spread out the weight of a load

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What materials would be the strongest for creating a structure?

• paper, cardboard, glue

• brick, cement, lumber

• plastic, fabric, plasticine

• sand, cork, wax

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What part of a structure needs to bear the most weight?

• the top

• the middle

• the base

• the sides