Grade 5 Structures

Give examples of natural and man-made structures.

• Natural: Oceans, deserts, lakes; Man-made: Tunnels, canals, highways

• Natural: Rivers, valleys, forests; Man-made: Parks, playgrounds, gardens

• Natural: Mountains, caves, trees; Man-made: Bridges, skyscrapers, dams

• Natural: Volcanoes, glaciers, islands; Man-made: Schools, hospitals, libraries

Explain how skeletons can be considered as frame structures.

• Skeletons are made of metal, while frame structures are made of bones.

• Skeletons are only found in animals, while frame structures are only found in buildings.

• Skeletons are used for decoration, while frame structures are used for support.

• Skeletons provide support and structure to the body, similar to how frame structures provide support and structure to buildings.

What is the purpose of a frame structure?

• To make the structure more flexible and wobbly

• To provide shade for outdoor spaces

• To support loads and provide stability for buildings and other structures.

• To create decorative patterns on buildings

How do natural structures differ from man-made structures?

• Natural structures are smaller than man-made structures

• Natural structures are formed by natural processes, while man-made structures are built by humans.

• Natural structures are made of metal, while man-made structures are made of wood

• Natural structures are always symmetrical, while man-made structures are asymmetrical

Name three types of natural structures.

• Skyscrapers, bridges, tunnels

• Rivers, lakes, oceans

• Forests, deserts, grasslands

• Mountains, caves, canyons

What are the advantages of using frame structures in construction?

• They limit flexibility in design

• They are lightweight, easy to assemble, and provide flexibility in design.

• They are not suitable for construction

• They are heavy and difficult to assemble

Describe the process of building a man-made structure.

• Asking a genie for a wish, snapping your fingers, and watching it magically appear

• Digging a hole, filling it with water, waiting for it to freeze

• Wishing really hard, sprinkling some fairy dust, and hoping for the best

• Planning, designing, obtaining permits, gathering materials, constructing, finishing

How do different types of structures support loads?

• By repelling the force

• Through tension, compression, bending, and shear

• Through expansion and contraction

• Through evaporation and condensation

Explain the concept of stability in structures.

• The tendency of a structure to collapse under pressure

• The ability of a structure to maintain its balance and resist being toppled over.

• The ability of a structure to easily fall apart

• The concept of instability in structures