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Icebergs

Icebergs

Icebergs are blocks of frozen freshwater floating in the sea.

Geography

Keywords

iceberg, ice sheet, ice, Titanic, sea current, water molecule, melting, glacier, freezing, calving, Antarctic, Arctic Circle, global warming, climate change, geography, nature

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During freezing hydrogen bonds are formed between water molecules resulting in a crystal structure.

Greenhouse effect

Human activity increases the greenhouse effect and leads to global warming.

Ocean currents

The Great ocean conveyor is a planet-wide system of ocean currents, which has a great influence on the Earth´s climate.

Titanic (1912)

RMS Titanic was the largest passenger ship at the beginning of the 20th century.

Fjord

A fjord is a long, narrow inlet with steep sides, created in a valley carved by glacial activity.

Glaciation

The last Ice Age ended about 13 thousand years ago.

The water cycle (intermediate)

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Ötzi, the Iceman

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