Amylose ((C₆H₁₀O₅)n)

A helical molecule consisting of alpha-D-glucose units. It is one...

Fibroin

Fibroin is a fibrillar protein excreted by silkworms.

Female reproductive system (basic)

The reproductive system is a series of organs working together for...

Hypochlorite ion (OCl⁻)

Hypochlorite ions are formed when water is disinfected with chlorine.

Clothing (Western Europe, 1920s)

Clothing reflects the lifestyle and culture of the region´s...

Silver chloride (AgCl)

A white, crystalline compound that breaks down when affected by light.

Ferrous metallurgy (basic)

Raw iron is produced from iron ore in iron smelters.

Alpha-D-glucose (C₆H₁₂O₆)

Alpha-D-glucose is one of the stereoisomers of glucoses,...

Log house

Log houses were a typical type of dwellings in Hungary in the...

2-methylbutane (C₅H₁₂)

One of the isomers of pentane, used as a solvent.

Silver iodide (AgI)

A light yellow compound formed in the reaction of silver nitrate...

Net of a cube (exercises)

Not all nets consisting of 6 congruent squares are foldable into...

Permanganate ion (MnO₄⁻)

Potassium permanganate is used as a disinfectant.

Silicon

A crystalline substance, an extremely important material in the...

Sulphuric acid (H₂SO₄)

A colourless, viscous liquid, a highly corrosive, strong acid used...

Silicon dioxide (SiO₂)

A polymorphic compound, mostly found in the form of quartz.

Meteorological instruments (basic)

This animation demonstrates instruments used to examine...

Ichthyosaur

Fish-like marine dinosaurs which resembled dolphins; a good...

Typical Central European flat in the 1950s

Typical Central European flats in the 1950s consisted of a single...

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