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.
The largest satellite of Pluto is Charon.
The structure and density of farms and villages depend on the geographical features of the region.
A colourless liquid with an odour similar to benzene. The monomer of polystyrene.
A colourless, heavier-than-air gas with a pungent odour.
Farming consists of special agricultural activities.
Napoleon Bonaparte´s Grande Armée was considered invincible.
One of the oxides of sulphur, forms sulphuric acid with water.
One of the main units of Matthias Corvinus´ Black Army was the infantry.
Find notable historical places on a blank map.
An exercise about the polarity of molecules.
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 most popular in the 18th-19th centuries.
The Avars established a stable empire in the Carpathian Basin between the 6th-8th centuries.
A compound of sulphur often used as a pesticide.
Place the sites of notable battles in Hungarian history on a blank map.
Find notable locations of the Carpathian Basin on a map.