This animation demonstrates how solar energy can be utilised.
A game to practise the use of analogue and digital clocks.
A type of snake with a characteristic spot on its neck.
The Emperor of the vast Far-Eastern empire was the lord of life and death.
Polypeptide chains are composed of amino acids and can appear in alpha-helix or beta-sheet form.
The three main types of blood vessels in the human body are the arteries, the veins, and the capillaries.
A two-stroke engine is a type of internal combustion engine with a cycle of only two (power) strokes.
Moles are small subterranean mammals with modified, spade-like forelegs.
The anatomy of annelids is demonstrated through the example of the common earthworm.
This animation shows optical and radiotelescopes used in astronomical observation.
In summer, monsoon winds bring heavy rainfall from the ocean to the continent.
This animation demonstrates the main sources of soil pollution.
Glands of the endocrine system secrete hormones into the blood.
A string quartet consists of four string players, it appeared in the late 18th century.
The piano is one of the most popular instruments in the world. It is a chordophone which produces sounds mechanically.
A species of mollusc widespread in freshwaters.
The zygote is the initial cell formed when two gamete cells are joined by means of sexual reproduction.
Jellyfish are free-swimming marine animals, a species of Cnidaria, the most ancient group of Eumetazoans.
One of the most important components of the microwave oven is the magnetron, which produces the microwaves.
An ancient Greek myth about the tragedy of father and son who wanted to flee the island of Crete.