Build A Dome

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In this activity, learners explore the structural strength of triangles by creating their own free-standing geodesic dome out of plastic straws. Learners will be able to connect their creation to similar forces within self-supporting buildings. Includes step-by-step instructions with pictures and a video, suggested reflection questions, suggested activity extensions, an explanation of the science behind the activity.

Quick Guide

Preparation Time:
5 to 10 minutes

Learning Time:
30 to 45 minutes

Estimated Materials Cost:
$1 - $5 per student

Age Range:
Ages 8 - 18

Resource Type:


Materials List (per student)

  • 35 straws of one color
  • 30 straws of another color
  • Tape
  • Scissors


  • Engineering and Technology
    • Engineering
      • Architectural Engineering
      • Civil Engineering
    • Technology
      • Construction
  • Mathematics
    • Geometry
      • Solid Geometry


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Access Rights:

  • Free access



  • All rights reserved, , 2020

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