Baltimore Aquarium field work. @CampbellAPS By @CampbellAPS | March 18, 2016 Baltimore Aquarium field work. @CampbellAPS https://t.co/x9uSGDJ9cY Posted in Daily News and tagged @CampbellAPS ← Recreating the rock cycle with crayons @CampbellAPS @APSscience @OConnor4_5 Visit to Thomas Jefferson MS. Excited to see our future! @CampbellAPS →