Erika Kötelešová

The

earth

The earth• The Earth is the third

planet of the solar system. It is also the only planet on which, according to current scientific knowledge, the water in the liquid phase and life. The population is around our 7 billion.

• Earth‘s surface is very diverse because it shaped the large number of the most diverse processes, some of which we do not know anywhere else in the solar system, only Earth. Earth is probably the only planet solar system, which has been preserved volcanic activity and plate tectonics (although there is preliminary evidence of volcanic activity on Mercury and Venus in the moment). These two processes are significantly involved in reshaping the face of the earth. Collision of plates leads to the creation of new mountain ranges. Volcanoes often in the form of whole chains of volcanic islands make up magmatically active regions, often at the edges of tectonic plates.

surface

Depth below the surface according to themes, the layer of the Earth: Lithosphere - the top layer of the Earth, crude from 0 to 60 km, is a single entity consisting of more layers: 0 to 35 km - is the uppermost crust, brittle part of the lithosphere, the thickness of which varies from 5 km (at the bottom of the oceans) to 70 km (mountain)

35 to 60 km - a top coat the lower part of the lithosphere in contact with bark, with which it exchanges heat and chemicals

• 60 to 2890 km - the lower mantle is evolving state of plastic on the outside of the relatively fixed in hĺbke2 890 to 5100 km - outer core, composed of a mixture of iron and nickel is probably liquid from 5100 to 6378 km - the inner core, the densest Provincial body part that is fixed

Layers of the earthAbove the surface of the earth is Atmosphere, which is divided into the following sections:0 to 10 km – troposphere10 to 50 km - Stratosphere50 to 90 km - mesosphere90 to 550 km - Thermosphereover 550 km - exosphere

• Earth orbits the sun in the middle distance of 149.6 million km average speed of 29.8 km / s. Mean distance of Earth from the Sun has become one of the basic astronomical units of length and is referred to as the astronomical unit. Change of distance from the Sun is not the cause of the rotation of the seasons.

Circulation around the sun

The earth in mythology

In ancient Rome fit goddess Gaia Tellus or Terra to Gaia but with not quite the same. Tellus was primarily divine mother land which gave grow plants from my womb and it is very similar to another Roman goddess Cerere.

In ancient Greece was the goddess of the Earth Gaia, born of Primal Chaos. Her husband Uranus born from itself and gave him a number of descendants. Ideas of Gaia and her descendants know especially from Homer‘s Iliad and Odyssey and Hesiod birth of the gods.

• The Earth‘s axis is the line passing through the center of the Earth and the Earth‘s surface intersects at two points, which are called poles. Around this axis, the Earth rotates at a constant speed almost to the equator reaches 465.09 m / s. One turn around its axis takes 24 hours (exactly 23h 56min and 4s). This time unit is called a solar day. Earth‘s rotation about the axis of rotation causes day and night. For 1 hour, the Earth rotates on 1/24 of its size, which is 15 ° longitude. For every 15 ° therefore falls one time zone. Under the influence of tidal forces of the Moon is Earth‘s rotation slows down slowly, about a thousandth of a second for 100 years.

Rotation

Mercury

JupiterSaturn

Mars

Venus

Other Planets

Uranus

Neptune

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