Family Science Projects - Hudson River Museum Date: 12/01/12 through 12/31/12 Hours: 1-4pm Ages: All Price: Free with admission: $5; $3 seniors and children Address: 511 Warburton Ave. - 914-963-4550 Yonkers, NY 10701 hrm.org Description: Physical-science demonstrations and projects in the Hudson Riverama gallery that each explore an aspect of the natural world or relate to the Museum's Planetarium shows. Explore rainbows Dec. 2, 16, and 30; explore clouds Dec. 8 and 22.