The simplest amino acid.
One of the allotropes of phosphorus.
An aldehyde which is an important raw material and intermediate product in industry.
A basic heterocyclic organic compound; a colourless, pungent toxic liquid.
One of the hydrogen halides, it is used for the production of alkyl bromides.
The largest satellite of Pluto is Charon.
A colourless liquid with an odour similar to benzene. The monomer of polystyrene.
A colourless, heavier-than-air gas with a pungent odour.
Bratislava (Pozsony) was the capital of the Kingdom of Hungary in the 18th century
The compound of hydrogen and oxygen. Colourless, odourless liquid; heavier than water.
The sixth member in the homologous series of straight-chain alkanes.
One of the main units of Matthias Corvinus´ Black Army was the infantry.
Find notable historical places on a blank map.
This animation demonstrates the types of soil found in Hungary.
Pit houses were typical dwellings in the Arpad era.
The term ´hussar´ refers to a type of light cavalry which originated in Hungary and was...
The Avars established a stable empire in the Carpathian Basin between the 6th-8th centuries.
An exercise about the polarity of molecules.
Place the sites of notable battles in Hungarian history on a blank map.
Find notable locations of the Carpathian Basin on a map.