STEM Challenge: Arachnikid’s New Bunkmate

Arachnikid's New Bunkmate

Challenge and Constraints

Challenge and Constraint

We have a huge Stop Sign today. Platinum Patroller wants to sleep on the top bunk. We’ve got to use the architectural techniques we’ve learned to build the bunkbed strong enough to hold his incredible weight without turning Arachnikid into a pancake.


You may also provide these optional materials: cereal boxes, toilet paper rolls, Dixie cups, and aluminum foil.


  • Materials: Students can use no more than five of any one material per creation! For example, a student can use five straws and five pieces of paper, but not ten straws. If you provide aluminum foil, no more than one arm’s length piece for each student!
  • Groups: Students can work with a partner or on their own. No groups of three!
  • Time to Build: 45 minutes