Straw And Rubber Band Bridge

Before building dad and aidan looked at different types of bridge designs on this site.

Straw and rubber band bridge.

Build a truss bridge that spans at least 25 cm using only straws and tape. Build a bridge out of straws and straight pins that can support the weight of 100 pennies in a small cup. Nov 8 2016 explore dana marino s board straw bridge on pinterest. 20 straws and tape.

Straws are flexible so manipulate them into shape to create your structure. Paper 1 cup 1 balloon 2 rubber bands 4 spoons 6 mailing labels 2 straws 10 toothpicks string. Give the teams time to plan and build their bridge. How to play straws and rubberbands 1 each person gets a straw 2 the straw must be held using their mouth 3 they have to pass the rubberband around using the straw.

Distribute supplies to each team. More information straw and rubber band bridge engineering challenge stem. Last friday at cc there was a project introduced for the students to build bridges made from straws r. Insert the straws end to end and secure them with the pins.

Working as engineering teams students design and create model beam bridges using plastic drinking straws and tape as their construction materials. Their goal is to build the strongest bridge with a truss pattern of their own design while meeting the design criteria and constraints. Balance the blown up balloon in the cup. 4 if the rubberband drops the straw has to be cut rules.

They experiment with different geometric shapes and determine how shapes affect the strength of materials. 1 hands not allowed to hold the straws or rubberband. Once their bridge is complete participants will place pennies or metal washers at the center of the bridge s span to measure how much weight it can support. Use more pins and glue to attach the straw bridge to the stabilizing straws on the wood posts.

See more ideas about straw bridge classical conversations stem science. Stack of paper from recycling. 2 pass the rubberband before the time limit time limit example. Now build a tower as tall as you can on top of the balloon using the materials.