Summer stride 2021

Activity: Cardboard Machine Challenge

STEM Challenge
Monday, 8/2/2021
2:00 - 2:15
Virtual Library

Online Services
San Francisco, CA 94102
United States

Can you build a machine from a cardboard box? Learn how to make a simple automata and discover cranks, levers and cams in this engineering challenge. Gather a small corrugated cardboard box, 2 bamboo skewers, a disposable straw, duct tape, scissors and items to decorate the final creation with Librarian Anita.

Watch on YouTube

STEM Challenge is created by the San Francisco Public Library from the Youth Librarian STEM team. Stay STEM-tastic by reading, learning and experimenting at home. 

In response to feedback from our Black community and staff, we updated the original name STEM Challenge Yo’Self to STEM Challenge on July 19, 2021. We recognize the original title is appropriated from Black vernacular and perpetuates racism, and has caused harm to our Black/BIPOC community members and staff. Our library is working towards being an anti-racist institution and committed to doing better.

Gain a new perspective on and understanding of the world through programs on the sciences.

Summer Stride is the Library's annual summer learning, reading and exploration program for all ages and abilities. Read and learn with the Library all summer long.

This program is sponsored by Friends of the San Francisco Public Library.

Attending Programs

Questions about the program or problems registering? Contact For accommodations (such as ASL interpretation or captioning), call (415) 557-4557 or contact Requesting at least 72 hours in advance will help ensure availability.

Public Notice and Disclaimer

This program uses a third-party website link. By clicking on the third-party website link, you will leave SFPL's website and enter a website not operated by SFPL. This service may collect personally identifying information about you, such as name, username, email address, and password. This service will treat the information it collects about you pursuant to its own privacy policy. We encourage you to review the privacy policies of each third-party website or service that you visit or use, including those third parties with whom you interact through our Library services. For more information about these third-party links, please see the section of SFPL’s Privacy Policy describing Links to Other Sites.

The views and opinions expressed in programs presented by groups unaffiliated with SFPL do not necessarily reflect the official policy or position of SFPL or the City.