What is the largest lake in the world by area?
AnswerCaspian Sea
Despite its name, the Caspian Sea is a lake and the largest by area.
Nature · Facts & stats
Lake facts & stats
7 fact-checked facts about the world's lakes, their science and geography, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What is the deepest lake in the world?
AnswerLake Baikal
Lake Baikal in Siberia is more than 1,600 meters deep.
Going deeper
Which Great Lake lies entirely within the United States?
AnswerLake Michigan
The other four Great Lakes are shared with Canada.
Lake Titicaca sits on the border of which two countries?
AnswerPeru and Bolivia
Titicaca lies high in the Andes between Peru and Bolivia.
Which Great Lake is the largest by area?
AnswerLake Superior
Superior is the largest of the Great Lakes by surface area.
Expert level
In a layered summer lake, what is the zone of rapid temperature change called?
AnswerThermocline
The thermocline separates warm surface water from cold deep water.
About what share of the world's unfrozen surface fresh water does Lake Baikal hold?
AnswerAbout 20 percent
Baikal holds roughly a fifth of Earth's unfrozen surface fresh water.
Know these cold?Today's round is five questions like these, 20 seconds each. Your streak and level follow you to every arena.Play today's round