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Roads, Bridges and Tunnels
The Science in a Topic students’ book Roads, Bridges and Tunnels concerns the study of road networks and how they have been built to pass under or over obstacles such as mountains and rivers. Many different types of bridge are studied and the form of arches in tunnels considered. Students are lead to find out about famous bridges and tunnels in the world and when and how they were built. Instructions for students are well illustrated by drawings and photographs. The teacher has an active role, as indicated in the relevant sections of the Teacher’s Guide, in providing materials and reinforcing the questions that lead the students to investigate, create and find information. [b]Contents[/b] 1. Under and over 2. Roads 3. Bridging the gap 4. Bridge structures 5. Tunnels 6. The building materials 7. Ropes, wires and joints Flowchart Model-making and bibliography
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Roads, bridges and tunnels 29.22 MB