Please note our museum hours while we undergo renovations.
Museum HoursWed–Fri: 12:30pm–5pm | Sat: 10am–5pm

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

illustration of farming scenes
May 10, 2025
For Families

Stories of Science: May Flowers

Join us in our museum EVERY SATURDAY for a family-friendly program that highlights strange and surprising stories from the history of science!

infant in a colorful cradle
May 12, 2025
Science on Tap

What Shapes Sleep: Biology, Culture, or Both?

Pediatric sleep expert Jodi Mindell highlights the striking cross-cultural similarities and differences in sleep habits around the world.

illustration of a 1950s kitchen
May 17, 2025
For Families

Stories of Science: Food Science

We’re sinking our teeth into the science of food at this special edition of Stories of Science!

    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.