Arctic tern

The Arctic tern is famous for its long migration route: it flies from the Arctic to the Antarctic and back again each year.

Metals

Metal atoms form a regular lattice structure.

Cinema (USA, 1930s)

Cinemas were built in large numbers in big cities of the US in the 1910s.

The Brandenburg Gate

This Neoclassical structure is one of the best-known landmarks of Berlin and Germany.

Polynesian family settlement (Samoa, 15th century)

The architecture of traditional Samoan family settlements reflect the unique culture of their inhabitants.

Battle of Thermopylae (480 BC)

The battle of the Greek-Persian War became famous for the heroic sacrifice of the Spartan soldiers.

Paramecium caudatum

Common ciliated eucaryotic unicellular organisms widespread in freshwaters.

Alkaline batteries

In alkaline batteries electric current is generated by electrochemical reactions

Saturn

Saturn is the second largest planet in the Solar System, easily recognisable by its rings.

Geothermal power station

Geothermal power stations convert energy of hot, high-pressure water found in deeper layers of the Earth into electricity.

Nitrogen cycle

Atmospherical nitrogen is bound by bacteria and used by living organisms in the form of various compounds.

Karst region (intermediate)

Karst formations include dolines and dripstones.

Solar power station

Solar power stations convert solar energy into electricity.

Climate zones

The Earth is divided into geographical and climatic zones, which result in the zonation of vegetation.

Seafloor map

The boundaries of tectonic plates can be seen on the seafloor.

Glacier (intermediate)

A glacier is a large body of ice that forms from snow, and is in constant, slow motion.

SM U-35 submarine (Germany, 1912)

Submarines had an important role in naval warfare as early as World War I.

Transport networks

The animation presents the main air, water and land routes and transport hubs.

Haemoglobin

Oxygen carrier protein in our red blood cells.

Electricity supply network

The purpose of the electricity supply network is to provide electricity for consumers.

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