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Truss Test Yard
Created by Argraide
Updated October 27th, 2026
At a glance
- Staff pick
- Picked by the Argraide team
- Play mode
- 📱 Solo
- Format
- 🧊 3D
- Length
- ⏱ About 20 minutes
- Subject
- Science
- Grade
- 5
- Curriculum
- Ontario
- Curriculum codes
- D2.1D2.2
About this activity
A 3D engineering test yard. Students predict which parts of loaded truss bridges and towers are squeezed (compression) or stretched (tension), name the load behind a motion (own weight, a moving truck, a crosswind), and place thick posts where a structure needs strengthening. A load test proves every prediction.
What students learn
- Identify the internal forces, tension and compression, in the members of a loaded truss bridge or tower (D2.1)
- Identify the external force acting on a structure: its own weight (dead load), a moving truck (live load) or wind (D2.2)
- Use where compression acts to decide which members of a structure need a thicker post
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