This printable bingo card set on the topic of Oceans & Water has 16 unique items on a 4x4 grid. Each card is randomized so every player gets a different arrangement.
Ferdinand Magellan
1521
Sir John Ross
1818
Edward Forbes
Abyssus Theory 1842
Michael Sars
1850
The HMS Challenger
1872-1876
William Beebe/Otis Barton
1930
Otis Barton
1934
Jacques Cousteu/ Calypso
1956