Load path mapping and structural redundancy are the focus of this Grade 7 Science resource for Ontario's Form, Function and Design of Structures topic. Students examine how gravity, lateral, and dynamic forces move through connected structural elements, then explore why multiple viable load routes can improve structural resilience.

Map How Forces Move

Students learn to distinguish primary and secondary load paths and explain how forces travel toward foundations. The resource connects load-path mapping to structural stiffness and load distribution through specific examples involving diaphragms, shear walls, and moment frames. Students also consider how continuity in multi-span bridges can allow forces to redistribute across spans.

Irregular geometry becomes part of the analysis as students investigate large facade openings, re-entrant corners, and other geometric changes. They examine how openings can reduce stiffness, how forces may be redirected, and why engineers check that alternative pathways remain available when a primary route becomes weakened or less effective.

Apply the Ideas in Multiple Ways

The student work combines a focused reading passage with multiple-choice questions, true-or-false statements, short-answer responses, matching, a cloze passage, and an extended-response question. The written response asks students to apply load-path mapping and redundancy to a multi-span bridge or a building with large facade openings, requiring them to connect primary and secondary routes with changes in stiffness and load redistribution.

This structure gives students opportunities to move from defining structural vocabulary to explaining how geometry and structural elements influence force flow. The questions also reinforce why redundancy matters when a primary load route is weakened or when an irregular structural configuration changes how forces travel.

Everything Needed for Teaching and Review

• Student worksheet focused on load paths, redundancy, stiffness, load distribution, and irregular geometry
• Separate answer key PDF for efficient response checking
• Student Notes & Lesson Summary supplement for guided instruction and review
• Separate Teacher Guide with Learning Objectives, Teaching Tips, Discussion Questions, and Common Mistakes

Use It Across a Structures Lesson

Use this Grade 7 structural engineering worksheet when introducing load path concepts, developing structural reasoning, reinforcing lessons on form and function, or reviewing how connected systems respond to different loading conditions. The real-world contexts of buildings and multi-span bridges give students a concrete setting for discussing force transfer, stiffness, and alternative load routes.

With its Ontario Science focus on Form, Function and Design of Structures, the resource helps students connect structural system organization with the way loads are distributed and rerouted through connected members.