A glacier is a large body of ice that forms from snow, and is in constant, slow motion.
The boundaries of tectonic plates can be seen on the seafloor.
Karst formations include dolines and dripstones.
The Earth is divided into geographical and climatic zones, which result in the zonation of vegetation.
DC motors consist of a permanent magnet and a coil within the magnet, with electric current flowing in it.
The medieval bell tower of the Cathedral of Pisa is the most famous leaning tower of the world.
This animation demonstrates the components (vertices, edges, diagonals and faces) of the cube, one of the Platonic solids.
A type of sugar found in mammalian milk.
This animation demonstrates various types of cylindrical solids as well as their lateral surfaces.
A sphere is the set of points which are all within the same distance from a given point in space.
An important endocrine gland producing hormones that affect metabolism and the calcium balance of the body.
Heavy trucks play an important role in transportation.
Knallgas is the mixture of hydrogen and oxygen. It will explode when ignited.
The arms are moved by flexor and extensor muscles.
The two main parts of the central nervous system, the brain and the spinal cord are protected by the skull and the spinal column.
Possible traces of water and life are sought on Mars.
Jupiter is the largest planet of the Solar System, it has two and a half times the mass of all the other planets combined.
During its orbit around the Earth, the visibility of the Moon's illuminated part constantly changes.
Entertaining and spectacular animation to practice orientation in space.
Mercury is innermost and smallest planet of the Solar System.