Find historic landmarks on a blank map.
About 1,500 people were taken to the labour camp also known as ‘the Hungarian Gulag’ during the Rákosi era.
Place the sites of notable battles in history on a blank map.
A colourless liquid, a tertiary amide.
A solid, crystalline compound.
Colourless, odourless, heavier-than-air gas. Necessary for the photosynthesis of plants.
One of the main units of Matthias Corvinus´ Black Army was the infantry.
Colourless liquid that gives off smoke in moist air.
Fibroin is a fibrillar protein excreted by silkworms.
Bin lorries play an important role in the life of towns and cities.
A circular, domed, portable tent covered by felt, typically used by nomadic peoples.
Not all nets consisting of 6 congruent squares are foldable into cubes.
Pick the shape that is shown in different views below.
A polymorphic compound, mostly found in the form of quartz.
A white, crystalline compound that breaks down when affected by light.
Hypochlorite ions are formed when water is disinfected with chlorine.
A helical molecule consisting of alpha-D-glucose units. It is one of the basic components of starch.
Alpha-D-glucose is one of the stereoisomers of glucoses, specifically the D-glucoses.
Buildings constructed of prefabricated concrete blocks were widespread in the former Socialist countries.
Edges, diagonals and faces of a cuboid can be identified by its vertices.