Exercise 3.2


Lesson 3.2: Joining Structural Components


ACTIVITY A: Joining Materials



Required Readings

Science in Action 7
pages 313 to 318
or
Science Focus 7
pages 290 to 296


To complete wood projects the cabinetmaker must use various joints to stabilize his project. Other everyday examples using joints are bridges and railroad tracks. These examples use expansion joints to overcome problems with expansion and contraction of materials.

The joining of Prince Edward Island to the rest of Canada with a bridge was a huge undertaking in the 1990's. Watch the 6 sections of the Confederation Bridging Building.
Exercise 3.2: Joining Materials