Join Librarian Anita for a vivid experiment and explore the pH scale with a vegetable and a variety of liquids. Gather a leaf of red cabbage, water, measuring cups and spoons, baking soda and white vinegar.

Live STEM Lab with SFPL is created by the STEM Challenge Yo’Self Youth Librarian team. Bring your questions and share your work.

Stay STEM-tastic by reading, learning and experimenting at home. Gather materials for a new challenge posted weekly on Mondays at 2pm. Then, register for a Live STEM Lab with SFPL on Tuesdays at 2pm.