Dünya'da en bol bulunan ve yaşam için elzem elementtir.
Renksiz, kokusuz, zehirli gazdır. Kışın bozuk ısıtma ekipmanları nedeniyle karbonmonoksit zehirlenmesinde pek çok kişi ölür.
Renksiz, kokusuz, reaktif olmayan gazdır, atmosferin % 78'ini oluşturur.
Granada üstüne yükselen muhteşem bina kompleksinin Arapça kökenli isminin anlamı "kızıl"dır.
The Forbidden City is one of the most magnificent and mysterious monuments of imperial China.
Frank Lloyd Wright's well-known work is a masterpiece of modern organic architecture.
This scene presents the basic components of the human body.
This 3D scene presents the flora and fauna of the last period of the Palaeozoic Era.
This 3D scene presents the steps of the cement manufacturing process.
By positron emission tomography (PET), we can obtain visual information on our internal organs without making any surgical incisions.
A metropolis is a large city with a population of over 1 million people.
Several ingenious instruments have been invented over the centuries to help in navigating the seas.
Standing bodies of water can form in depressions on the surface by both endogenic and exogenic forces, as well as by human activity.
The B-24 Liberator was an American heavy bomber aircraft, built in large numbers, that was used on every front during World War II.
Az ókori egyiptomiak emberek felett álló szellemvilága rengeteg különleges lényből tevődött össze.
Bacteria are unicellular organisms that have no nuclei and are a few micrometres in length
In mountainous areas the climate, soil properties, the flora and fauna change depending on elevation.
The Panama Canal is an artificial waterway created to shorten shipping routes between the Pacific Ocean and the Atlantic Ocean.
Learn the concept of colours, numbers, letters and shapes while playing
An introduction to the relief and hydrography of China.