Across
- 5. A tall, strong post that holds up part of a bridge.
- 6. This shape is often used in bridges because it's very strong
Down
- 1. A structure built to cross over water, roads, or valleys.
- 2. The material we used in the activity to build bridges.
- 3. The push or pull that makes things move.
- 4. A pattern of triangles that makes a bridge strong.