Children can learn all about the mysteries of the ocean in an ocean science program beginning at 4 p.m. on Thursday at the Eastern branch, located at 6000 Eastern Ave. The program will continue each Thursday through October. Attendees will learn about the ocean, its ecology and the creatures that live in it with hands-on activities and demonstrations. This event is free and open to the public. Registration is required. For more information or to register, visit www.davenportlibrary.com or call the library at 563-326-7832.