Across
- 4. Can support weight, but twist and collapse if not supported
- 6. The action of being stretched to stiffness
- 8. Percent of towers weight that should be glue
- 9. Weight structure holds divided by structure's weight
- 12. All joints should have ______ surfaces before gluing
- 13. Strength most stress a substance can bear without tearing apart
- 14. Can support weight, but can twist and collapse if not supported
Down
- 1. For tower to be stronger distances between _________
- 2. Filling gaps in joints of your towers ______ the structure
- 3. To hold up or serve as a foundation
- 4. A famous old tower which is in Italy
- 5. Sides are the same as a mirror image
- 6. Rigidity of the triangular shape can support weight securely
- 7. In the past, towers were usually used to house bells, _____ towers or light houses
- 10. A famous old tower which is in France
- 11. is the part that towers are won and lost by