SaH: Igloo Fun

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In this STEM Challenge, you will build an igloo out of marshmallows


Using straight toothpicks, can you create a dome-shaped igloo?


  • marshmallows
  • toothpicks


What to Do

  1. Take time to brainstorm your design.  Write down some notes or draw a picture.
  2. Create your design using the materials. 
  3. Does your igloo stand on its own without support on the inside?  


What is Happening?

An igloo is built with packed snow blocks.  The blocks are placed in a circular pattern spiraling all the way to the top.  Did you create a pattern in the design of your igloo?   


Activity add-ons:

Are there other materials you can think of that would add to the success of your igloo? What are they?  How would you add them to your design? Would these additions help your igloo stand on its own without support on the inside? 

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We here at the Reading Science Center understand that these are unprecedented times. as such, we wanted you to know that we are taking the following precautions until further notice:

  • We have an air scrubber (Vollara) that we use in the Center
  • We have deep cleaning complete weekly 
  • Sanitizing every three hours using MICROBAN Sanitizing spray
  • Hand Snaitizer is readily available throughout the Center
  • Masking is required regardless of vaccination status
  • Limiting Hours (No Tuesdays until February)
  • Temperature Checks and an illness questionnaire
  • We respectfully request that if you or a family member with you is feeling under the weather, you visit us another time.  
  • If we need to close, we will post on Social Media as soon as we have made the decision

Thank You and we look forward to you and your family visiting the Reading Science Center!