Science

BWI Airport Observation Gallery Stay entertained pre-flight with aeronautical curiosities; watch take-offs and landings from the observation lounge between Concourses B and C; push buttons and control the lights of a real Boeing 737 cockpit; explore a mock airplane, baggage train, and gas truck. Baltimore/Washington Thurgood Marshall International Airport, 7590 Friendship Rd., Linthicum, MD; 800 IFLY BWI.

Hagerstown Discovery Station Trace fossils and dig up dinosaur bones; examine a model of the NEAR spacecraft; man the controls and monitor the instrument readings of an interactive Cessna 150 cockpit; climb inside a cow's mouth and explore what's inside at the Adventures in Agriculture exhibit. 101 W. Washington St., Hagerstown, MD; +1 301 790 0076. Fee.

Maryland Science Center Excavate dinosaur remains, touch a cloud, explore Chesapeake Bay habitat and check out the beloved giant mechanical Blue Crab; discover the phenomena of matter, energy, force, and motion in Newton's Alley. 601 Light St., Baltimore, MD; +1 410 685 5225 or +1 410 685 2370. Fee.