The sixth member in the homologous series of straight-chain alkanes.
One of the hydrogen halides, a highly aggressive substance - it even attacks glass.
A component of DNA, it contains one less hydroxyl group than β-D-ribose.
Farming consists of special agricultural activities.
The structure and density of farms and villages depend on the geographical features of the region.
A solid, grey substance which sublimates when heated. Its solution in alcohol is called tincture of iodine, it is a disinfectant.
The fifth member in the alkane homologous series. A colourless, combustible liquid.
The open-chain version of ribose, which occurs naturally in nucleic acids, coenzymes, nucleotides and nucleosides.
An exercise about hydrocarbons.
Colourless, odourless, lighter-than-air gas. The most common chemical element in the universe.
Tennis is played on a court covered with grass, clay or synthetic material.
An exercise about the groups and structure of oxo compounds.
As a milestone in the history of aviation, Oszkár Asboth´s first helicopter made its first flight in 1928.
The simplest representative of ketones.
One of the isomers of pentene.
Clothing reflects the lifestyle and culture of the region's inhabitants.
Practising the use of the spatial coordinate system with the help of a computer-designed kitchen model.
A yellow-green toxic gas with a strong odour, one of the halogens.
A heterocyclic organic compound, its derivatives are thymine, cytosine and uracil.
The animation helps to develop space perception and navigation in space using space coordinates.