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Grade 3 · Science · Unit 4 of 5

Structures & Their Jobs

Natural and built structures, form and function

What your child practises

What makes something a structure, how its shape fits its job (a bowl-shaped nest, a sloped roof), structures built by animals and by people, and how they change the environment.

New Brunswick Curriculum skill descriptor: Scientific Literacy: Sensemaking · structures and their jobs

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    Which structure's form best fits holding up a roof in the middle of a room?

    🏛️
    • a sponge
    • a sheet of paper
    • a rope
    • a post

  2. Question 2

    A human-made structure like a park bridge can give people a way to enjoy nature. This is one…

    🌲
    • harm to the soil
    • benefit to people
    • danger to birds
    • type of habitat

  3. Question 3

    Who built it? Tap an item, then tap its basket.

    Sort into: 🐾 built by animals · 👷 built by people

    • ⛺tent
    • 🕸️spider web
    • 🐝wasp nest
    • 🦫beaver dam
    • 🗼tower
    • 🏠house

  4. Question 4

    A wide bridge across a river helps a town because it…

    🌉
    • keeps out snow
    • makes the river dry
    • stops all boats
    • lets people and goods cross

  5. Question 5

    A dam holds back water, but it can also change a river's habitat. This is an example of a structure's…

    🏞️
    • effect on the environment
    • colour
    • speed
    • price

  6. Question 6

    A chair has a seat, legs and a back. What is its job?

    🪑
    • to hold a person who is sitting
    • to hold water
    • to carry people across a river
    • to keep the room cold

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