ice jam

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winter ice melting salt on the ground, pattern as background

Why Does Salt Melt Ice?

Glacier off coast of Argentina, South America. (glacial; snow; ice; blue ice; melting glacier)

What’s the Difference Between a Glacier and an Ice Floe?

Iceberg, Arctic (polar, environment, global warming)

Why Does Water Freeze from the Top Down?

Discover

Santa Claus flying in his sleigh, christmas, reindeer

Was Santa Claus a Real Person?

A human Inuit skull in a stone chambered cairn in Ilulissat in Greenland. These ancient graves are pre christian and are at least 2000

14 Tough Questions Answered

Thumbnail for flags that look alike quiz Russia, Slovenia, Iceland, Norway

Flags That Look Alike

The Cheshire Cat is a fictional cat from Lewis Carroll's Alice's Adventures in Wonderland. (Alice in Wonderland)

11 Banned Books Through Time

Super Typhoon Noru over the western tropical Pacific Ocean as observed by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA Aqua satellite July 31 2017

What Is the Difference Between a Typhoon and a Super Typhoon?

Thanksgiving Turkey with all the sides

Why Do We Eat Turkey on Thanksgiving?

New York NY/ USA- November 23, 2018 Hordes of shoppers throng the Macy's Herald Square flagship store in New York looking for bargains on the day after Thanksgiving, Black Friday.

Why Is It Called Black Friday?

ice jam: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Facts

Also Known As	ice dam

Topics

ice ice formation river system ice in lakes and rivers river glacier iceberg permafrost estuary waterfall alluvial fan delta spring

Quiz

Iceland, Glacier lagoon (Jokulsarlon)

Winter Weather Words Quiz

water glass on white background. (drink; clear; clean water; liquid)

Water and its Varying Forms