This exciting and colourful game is designed to develop spatial perception. You can check your solutions using isometric views.
The three types of muscle found in the human body are the smooth, the striated and the cardiac muscle.
Rotating a geometric shape around a line within its geometric plane as an axis results in a solid of revolution.
Olfactory receptors produce electric signals when stimulated by odours.
Wind, as an external force, plays an important role in shaping deserts.
The Great ocean conveyor is a planet-wide system of ocean currents, which has a great influence on the Earth´s climate.
Deforestation has a negative impact on the environment.
The building commissioned by Pompey the Great was the first permanent theatre in Ancient Rome.
Systemic circulation carries oxygenated blood from the heart to the body, while pulmonary circulation carries oxygenated blood from the lungs to the heart.
A widespread snail species, also popular as food.
Eukaryotic cells with nuclei measuring only a few micrometres may contain nearly 2 metres of DNA, coiled multiple times.
The Wright Flyer was the first successful powered, heavier-than-air aircraft, designed and built by the Wright brothers.
The life cycle of vertebrates starts with the production of the reproductive cells of an individual and ends with the production of the reproductive cells...
The bacterial disease known as the bubonic plague is one of the deadliest infectious diseases in the history of mankind.
Majestic even in its ruins, this city was the largest and most populous settlement in the pre-Columbian Americas.
We can travel on dual carriageways on the motorway.
This animation presents some interesting facts in the field of astronomy.
This animation demonstrates the anatomy of spiders through the example of a common European species.
A type of large freshwater crayfish widespread in Europe.
Seawater, as an external force, plays an important role in shaping coastlines.