Join our museum’s Gallery Guides for a “drop-in” tour that explores the importance of water and the histories of pollution and protection that have changed our relationship to this vital substance.

Clean water is life, and our scientific understanding of the water cycle’s significance and complexity has grown in the last few centuries.

On this tour, you’ll learn about the gods and powerful beings that were believed to protect flowing waters, how early anti-pollution advocates dealt with crises like thousands of dead fish in the Colorado River, and how chemistry and water knowledge intersect. Find out how Rachel Carson’s Silent Spring, the EPA, and scientists and activists throughout history have fought to protect our waters from contamination.

We’ll also talk about the history of our local water sources in the Delaware Valley, the technological advancements that led to the water systems we have today, and how innovators helped us observe, test, and purify water, first to make it fit for human consumption, and later as a matter of environmental ethics.


Drop-in tours are free and no reservations are necessary.

More events

Book cover of The Maternal Imprint showing a pattern of colorful thumbprints
March 19, 2026
Programs, Lectures & Talks

The Maternal Imprint

This Women’s History Month, join us for a thought-provoking presentation by leading gender and science scholar Sarah S. Richardson.

dark blue graphic showing 52 Weeks of Firsts along with various mementos
March 21, 2026
For Families

Stories of Science: 52 Weeks of Firsts

Join us as we celebrate the invention of the first paper match folder in 1892—the precursor to the modern matchbook—as part of the Philadelphia Historic District’s 52 Weeks of Firsts.

Women in lab coat using a spectrophotometer
March 21, 2026
Drop-In Tours

Women in Chemistry Tour

Drop in for a tour highlighting the central role of women in shaping chemistry and the material sciences throughout history.

    Republish

    Copy the above HTML to republish this content. We have formatted the material to follow our guidelines, which include our credit requirements. Please review our full list of guidelines for more information. By republishing this content, you agree to our republication requirements.