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  • New at-home activities collection | We have developed a new set of activity characteristics that will help caregivers and educators support at-home STEM learning. Check out the curated activity collection here!
  • Museums offering at-home activities | We are updating a list of museums that are sharing new online engagement resources during this challenging time—check it out here.
  • Read our update | We have been the one-stop location for STEM activities on the web for 10 years.  Read how we are continuing to help you reach learners with at-home resources during  this challenging time.
  • Explore our topic pages |  Not sure where to start searching? Try browsing activities organized by popular subjects and frameworks—like astronomy.
  • Our awards | We have been recognized by Homeschool Base,, the American Library Association, and the American Association of School Librarians.

Welcome to howtosmile

Search almost 3,500 of the very best STEM activities on the web. Find handpicked activities from your favorite science museums, public television stations, universities, and other educational organizations. All activities are available to anyone, free of charge. Start searching now and filter by age, material costs, and learning time to find exactly what you need for your educational program, class, or family.

After launching in 2010, and serving millions of web visitors, howtosmile has become the largest and longest running online collection of STEM activities for educators and learners from all over the world. Let us know what you think and send any suggestions for new resources by emailing us at

Curated Topic Pages

Latest Blog Post

An updated list of museums offering at-home activities

by: darrell porcello | 5.4.2020

As part of our continued efforts to support educators, families, and learners during the current public health crisis, the howtosmile team is maintaining a list of science center, planetarium, aquarium, and children's museum websites offering at-home activities and related learning resources.