This animation demonstrates how mobile phones work.
A game to practise the use of analogue and digital clocks.
A type of rotary engine of high efficiency
The three main types of blood vessels in the human body are the arteries, the veins, and the capillaries.
Capacitors store electrical energy in the form of electric charge.
The phosphorus cycle describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.
The earliest version of the lute appeared in ancient Mesopotamia.
Igloos were the typical dwellings built by Eskimos living in the Arctic zone.
Common ciliated eucaryotic unicellular organisms widespread in freshwaters.
Types of bridges include beam-, arch-, suspension-, cantilever and truss bridges.
This animation demonstrates how horse chestnut trees change throughout the seasons
This animation demonstrates the anatomy of amphibians through the example of a common species of frogs.
Widespread heterotrophic unicellular organisms with constantly changing shapes
The most ancient group of animals, they live underwater, lack real tissues and body symmetry.
Jellyfish are free-swimming marine animals, a species of Cnidaria, the most ancient group of Eumetazoans.
The anatomy of annelids is demonstrated through the example of the common earthworm.
A species of mollusc widespread in freshwaters.
Moles are small subterranean mammals with modified, spade-like forelegs.
The cockchafer (or maybug) is a widespread bug in Europe. Its larvae, known as chafer grubs are considered a pest.
The large white butterfly is a common species of butterflies, through which we demonstrate the anatomy of butterflies.