THE ARCHITECTS

Problem
Design and Build a bridge made solely of popsicle sticks and glue that can hold at least 25 pounds

TYPES OF STRESS

• elastic stress - structure is strained but goes back to origianl shape
• tensil stress - structure is strained but and doesn't go back to original shape
• mechanical stress - stress made when two items are pushing together
• built-in stress - stress that is made when the object is created
• compressive stress - stress on materials that leads to a smaller volume

SOLUTIONS TO DEAL WITH STRESS

• Forging - making or shaping an item by heating it in a fire and beating it.
• Rolling - turning an object on its axis
• Pressing - moving a spot on an object with something by exerting continuous physical force.

WHAT TYPE OF BRIDGE DID YOU USE

Our bridge held a total of 25 pounds we believe that this is because we added sides to our bridge that consisted of two long strips of popsicle sticks connected by a triangle pattern of popsicle sticks. We also believe the stiffness was due to the large amount of glue we applied.

If we were to give advice to a 6th grade student it would be to use sides, a triangle pattern, and lots of glue.

If we were to redo this project again with 200+ popsicle sticks we would definitely reinforce the ends and the sides of our bridge.

FININISHED PRODUCT

ORIGINAL DESIGN

MATERIALS

• Wood glue
• School glue
• 197 popsicle sticks