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The Moon is the Earth's only natural satellite
The Panama Canal is an artificial waterway created to shorten shipping routes between the Pacific Ocean and the Atlantic Ocean.
When producing sound, the vocal cords are vibrated by the air flowing out of the lung.
Olfactory receptors produce electric signals when stimulated by odours.
The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum.
The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum, which is divided into lobes.
Mechanical bell that functions by means of an electromagnet.
Deforestation has a negative impact on the environment.
Taste receptors convert chemical stimuli into electric signals.
This animation presents some animals and plants that lived between the Devonian and Permian periods (358–299 million years ago).
What happens in a liquid during evaporation and boiling? What does its boiling point depend on?
Carrier of genetic information in cells.
Several ingenious instruments have been invented over the centuries to help in navigating the seas.
The fortress-like palace was built by Roman Emperor Diocletian on the coast near his home town.
This animation explains the most important characteristics of waves through sound waves.
Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.
Massive accelerating or orbiting bodies cause ripples in spacetime. These are called gravitational waves.
The first section of the gastrointestinal tract comprises the oral cavity, the pharynx and the oesophagus.
Waves play an extremely important role in many areas of our lives.
The longest part of the digestive system, where most of the digestion and absorption takes place.