Balsa Wood Towers

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Across
  1. 6. the strongest geometric shape
  2. 7. the greatest stress a substance can bear without tearing apart
  3. 11. to hold up or serve as a foundation
  4. 12. The action of being stretched to stiffness
Down
  1. 1. the amount a structure bends or moves from its "at rest" position
  2. 2. A technique in which two members are joined by overlapping them
  3. 3. the measurement of your balsa wood tower that needs to be less than 20g
  4. 4. the measurement for your balsa wood tower that needs to be between 8" and 12"
  5. 5. the number of sides your balsa wood tower needs
  6. 8. can support weight, but can twist and collapse if not supported
  7. 9. A technique in which two members are joined by simply butting them together
  8. 10. the action of being pressed or squeezed