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

black and white photo of world's fair display of virus structure model
October 19, 2026
Conferences & Symposia

Artefacts XXXI: Trust and Objects

The 31st annual Artefacts Conference will explore how museums and academic institutions use material culture to build “trust in the history of science.”

Science History Institute Othmer Library
October 21, 2026
Free

Othmer Library Tour

Curious about the other half of the Science History Institute? Step into the Othmer Library of Chemical History!

page of book with color illustration of a man giving a vaccine to a baby boy
October 24, 2026
Tours

Unwell Waters Highlights Tour

Join our museum educators as we visit the history of medicine exhibit to learn about waterborne epidemics from Pennsylvania’s past.

    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.