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It is produced by treating methane with chlorine gas and used as a solvent.
Build 3D shapes from unit cubes with the help of several views.
Build 3D shapes from unit cubes with the help of several views.
This animation demonstrates the types of soil found in Hungary.
Colourless liquid that gives off smoke in moist air.
Find historic landmarks on a blank map.
Find notable locations of the Carpathian Basin on a map.
Place the sites of notable battles in Hungarian history on a blank map.
Find notable historical places on a blank map.
The sum of the volume of the ´tetrahedrons´ gives an approximation of the volume of the sphere.
Edges, diagonals and faces of a cuboid can be identified by its vertices.
Place the sites of notable battles in history on a blank map.
The Soviet army became a very powerful power broker after WWI, at first due to its size, later due to its arsenal.
One of the main units of Matthias Corvinus´ Black Army was the infantry.
Not all nets consisting of 6 congruent squares are foldable into cubes.
An exercise about the groups and structure of organic nitrogen compounds.
Clothing reflects the lifestyle and culture of the region's inhabitants.