Evidencia 1

SOLAR SYSTEM

Planets

The sun

Satellites

Asteroids

THE MOON

The earth

Evidence 1: Ecology and geography

They are small rocky bodies that move around bigger objects, especially planets The bigger satellites of the Solar System are in that order Ganymede:

Satellites

• (Jupiter III)
• Titan (Saturn VI)
• Allisto (Jupiter IV)
• Io (Jupiter I)
• Moon (Earth I)
• Europa (Jupiter II)
• Triton (Neptune I)
• Titania (Uranus III)

• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune

The planets are drab bodies that are capable of reflecting light and rotate around the sun in elliptical orbits. Their name comes from the greek "planētēs" that means "wanderer"

Planets

Nowadays there are 8 planets in the Solar System, these are:

Fun fact: The Sun is located on the outskirts of a spiral galaxy, the Milky Way. A medium-sized galaxy with a diameter of 100,000 light years. We are 25,000 light years from the center of the galaxy. At the center of it is a supermassive black hole, called Sagittarius A.

The Solar System was formed 4.6 billion years ago, when what we know today as the Solar System began to form from a molecular cloud of gas and dust.

• The day and the night.
• The Earth’s poles flattening.
• The apparent movement of the stars and the Sun from east to west.
• The deviation of the bodies during free falling; if you let an object fall freely no matter its weight, it does not fall completely vertically, but suffers a slight deviation to the East that is imperceptible when the time is very short.
• Coriolis Effect; which is the deviation happening to winds and ocean currents to the right on the North hemisphere and to the left on the South hemisphere. Consequently the water swirls in different directions in every hemisphere.
• The time differences around the globe; the time measuring on Earth is organized in time zones, which are 24 different. They begin from the Greenwich meridian (also called “Z time”).
• The seasons of the year; due to the revolutionary movement, the Earth moves closer and farther from the Sun, and then light does not distribute homogeneously on the terrestrial surface

7 Consequences of Rotation and Revolution

Earth layers

The Asteroids are rocky bodies of different shapes and sizes that orbit around the Sun, especially in the inner Solar System. The first to be discovered were the ones in the asteroid belt between Mars and Jupiter but we have some others were found to orbit near the Earth and they are called Near Earth Objects (NEO). Trojan orbit were found in the Jupiter orbit and Ceres are the. biggest of the known asteroids.

Asteroids

Aquí puedes incluir un dato relevante a destacar

Sun formed about 4.5 billion of years ago in the milky way galaxy's orion fur. It was formed when a cloud of dust and gas known as a solar nebula colapsed.

The sun

• 91% hydrogen
• 8.9 helium
• 0.1 heavier elements such as carbon or nitrogen

The sun layers

The Moon is Earth's only natural satellite. It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth.

The moon

• New moon: The moon's unilluminated side faces Earth, making it invisible except during a solar eclipse.

• First quarter: Half of the moon appears illuminated by direct sunlight.

• Full moon: The moon's illuminated side faces Earth, making it appear completely illuminated by direct sunlight.

• Last quarter: Also known as the third or final quarter, half of the moon appears illuminated by direct sunlight.

Moon phases

• Rotational movement:

The Earth moves around the polar axis following a west to east direction, and this causes the Sun to rise on the east (orient) and to set on the west (occident).

• Revolution movement:

The movement of the Earth around the Sun in a fixed path is called a revolution. The Earth revolves from west to east, i.e., in the anticlockwise direction.

Rotational movements

Concequences

• Landscape forms
• Pangea
• Volcanism
• seismicity

Bigger plates:North American, South American, Eurasian, African, Indian, Australian, Antarctic and Pacific. Smaller plates: Smaller plates:Cocos, Nazca, Caribbean,Arabic and Filipino.Because the planet is moving constantly, the plates are never quiet: they approach or recede from each other. These zones are known as expansion zones, and they are the zones where the plates are being separated by the ascendant currents of the upper mantle, especially under the sea. .

Tectonic Plates

Consequences

• Landscape forms
• Pangea
• Volcanism
• Seismicity