What is the time?

A game to practise the use of analogue and digital clocks.

Grass snake

A type of snake with a characteristic spot on its neck.

Medieval Chinese Emperor

The Emperor of the vast Far-Eastern empire was the lord of life and death.

Secondary structure of proteins

Polypeptide chains are composed of amino acids and can appear in alpha-helix or beta-sheet form.

Blood vessels

The three main types of blood vessels in the human body are the arteries, the veins, and the capillaries.

Two-stroke engine

A two-stroke engine is a type of internal combustion engine with a cycle of only two (power) strokes.

European mole

Moles are small subterranean mammals with modified, spade-like forelegs.

Common earthworm

The anatomy of annelids is demonstrated through the example of the common earthworm.

Telescopes

This animation shows optical and radiotelescopes used in astronomical observation.

Monsoon wind system

In summer, monsoon winds bring heavy rainfall from the ocean to the continent.

Soil pollution

This animation demonstrates the main sources of soil pollution.

Endocrine system

Glands of the endocrine system secrete hormones into the blood.

String quartet

A string quartet consists of four string players, it appeared in the late 18th century.

Piano

The piano is one of the most popular instruments in the world. It is a chordophone which produces sounds mechanically.

Freshwater pearl mussel

A species of mollusc widespread in freshwaters.

Gametes

The zygote is the initial cell formed when two gamete cells are joined by means of sexual reproduction.

Jellyfish

Jellyfish are free-swimming marine animals, a species of Cnidaria, the most ancient group of Eumetazoans.

Magnetron

One of the most important components of the microwave oven is the magnetron, which produces the microwaves.

Daedalus and Icarus

An ancient Greek myth about the tragedy of father and son who wanted to flee the island of Crete.

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