Celebrate Earth Day and the new exhibition Ecosystems at Risk: Threatened and Endangered in New Jersey with free hands-on activities, talks, urban bird watching (weather permitting), and more with museum curators and other guests.

Meet guests from the Tulpehaking Nature Center, New Jersey Audubon, Mercer County Master Gardeners, and New Jersey DEP Watershed Ambassador.  

Visitors can also pick up coupon valid for $2 off the 1:00 pm Planetarium show "We are Guardians," while supplies last.

Program schedule: 

• 10:30 am - Urban birdwatching; meet in front of Museum
• 11:30 am - Water health talk & I.D. activity; Riverview Court
• 1:00 pm - Planetarium show "We are Guardians"
• 2:00 pm - Tidal marshland talk; Riverview Court

Ongoing activities include sun printing, sun spotting/sun telescope (weather permitting); interactive sandbox; bird activity station, gardening station, EnviroScape and pollinator activities.