THE EARTH- OUR PLANET

5/17/2016

SUNThe Sun is the star at the center of the Solar System and is by far the most important source of energy for life on Earth.

EARTH IS THE THIRD PLANET FROM THE SUN

Earth is the third planet from the Sun and is the largest of the terrestrial planets. The Earth is the only planet in our solar system not to be named after a Greek or Roman deity. The Earth was formed approximately 4.54 billion years ago and is the only known planet to support life.

Equatorial Diameter: 12,756 km

Polar Diameter: 12,714 km

Mass: 5.97 × 10^24 kg

Moons: 1 (The Moon)

Orbit Distance: 149,598,262 km (1 AU)

Orbit Period: 365.26 daysSurface Temperature: -88 to 58°C

Planet Profile

NOW LETS LEARN ABOUT ALL PLANETS IN THE SOLAR SYSTEM

Here there is a video about our solar system

MERCURYMercury is the smallest planet in the Solar System and the one closest to the Sun, with an orbital period of about 88 Earth days, which is much faster than any other planet in the Solar System. Radius: 2,440 kmDistance from Sun: 57.91 million kmMass: 3.285 × 10^23 kg (0.055 M )⊕Length of day: 58d 15h 30mOrbital period: 88 daysGravity: 3.7 m/s²

VENUSVenus is the second planet from the Sun, orbiting it every 224.7 Earth days. It has the longest rotation period of any planet in the Solar System and rotates in the opposite direction to most other planets. It has no natural satelliteRadius: 6,052 kmDistance from Sun: 108.2 million kmMass: 4.867 × 10^24 kg (0.815 M )⊕Length of day: 116d 18h 0mOrbital period: 225 daysGravity: 8.87 m/s²

EARTHEarth is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to harbor life.Age: 4.543 billion yearsRadius: 6,371 kmDistance from Sun: 149.6 million kmArea: 510.1 million km²Population: 7.125 billion (2013) World BankMoon: Moon

MARSMars is the fourth planet from the Sun and the second-smallest planet in the Solar System, after Mercury. Radius: 3,390 kmMass: 6.39 × 10^23 kg (0.107 M )⊕Distance from Sun: 227.9 million kmLength of day: 1d 0h 40mGravity: 3.711 m/s²Moons: Phobos, Deimos

JUPITERJupiter is the fifth planet from the Sun and the largest in the Solar System. It is a giant planet with a mass one-thousandth that of the Sun, but two and a half times that of all the other planets in the Solar System combined.Jupiter has the biggest moon called Ganymede Radius: 69,911 kmDistance from Sun: 778.5 million kmMass: 1.898 × 10^27 kg (317.8 M )⊕Orbital period: 12 yearsGravity: 24.79 m/Moons: Europa, Ganymede, Io, Callisto, Amalthea, Ananke, more

SATURNSaturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with an average radius about nine times that of Earth.Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with an average radius about nine times that of Earth. Radius: 58,232 kmDistance from Sun: 1.429 billion kmMass: 5.683 × 10^26 kg (95.16 M )⊕Orbital period: 29 yearsLength of day: 0d 10h 42mMoons: Titan, Enceladus, Rhea, Dione, Mimas, Iapetus, Tethys, more

URANUSUranus is the seventh planet from the Sun. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System.Radius: 25,362 kmDistance from Sun: 2.877 billion kmMass: 8.681 × 10^25 kg (14.54 M )⊕Length of day: 0d 17h 14mDiscoverer: William HerschelMoons: Miranda, Titania, Umbriel, Oberon, Ariel, Puck, Cupid, Mab, more

NEPTUNENeptune is the eighth and farthest known planet from the Sun in the Solar System. It is the fourth-largest planet by diameter and the third-largest by mass. Among the giant planets in the Solar System, Neptune is the most dense. Radius: 24,622 kmDistance from Sun: 4.498 billion kmMass: 1.024 × 10^26 kg (17.15 M )⊕Surface area: 7.618 billion km²Moons: Triton, Nereid, Larissa, Proteus, Naiad, Thalassa, Galatea, Despina, Psamathe, Neso, Laomedeia, Halimede, Sao, S/2004 N 1Discoverers: Johann Gottfried Galle, Urbain Le Verrier, John Couch Adams

PLANET NINEOn Jan. 20, 2016, scientists announced the discovery of what could be a giant planet in the Kuiper Belt at the outer edge of our solar system. Nicknamed "Planet Nine," the world is a behemoth - about 10 times the mass of the Earth. It would take the planet between 10,000 and 20,000 years to orbit the sun.

This is our galaxy

Light year

Specially about moons

• Moons in our Solar System • As of October 2008, there are 181 known natural moons orbiting planets in

our Solar System. 173 moons orbit the "full-size" planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune), while 8 moons orbit the smaller "dwarf planets" (Ceres, Pluto, Haumea, Makemake, and Eris).

Now lets study about asteroids

• Facts about asteroids. Asteroids are small, rocky objects that orbit the Sun. The first asteroid was Ceres, discovered by Giuseppe Piazzi in 1801. There are currently over 600,000 known asteroids in our solar system.

Now comes Meteoroids

• A meteoroid is a small rocky or metallic body travelling through outer space. Meteoroids are significantly smaller than asteroids, and range in size from small grains to 1 meter-wide objects.

Now meteorite

• A meteorite is a fragment of rock or iron from outer space, usually a meteoroid or asteroid, which survives passage through the atmosphere as a meteor to impact the surface of the Earth. Meteorites are believed to originate in the asteroid belt between the planets of Mars and Jupiter.

Comets

• A comet is a very small solar system body made mostly of ices mixed with smaller amounts of dust and rock. Most comets are no larger than a few kilometers across. The main body of the comet is called the nucleus, and it can contain water, methane, nitrogen and other ices.

KUIPER BELT

• a region of the solar system beyond the orbit of Neptune, believed to contain many comets, asteroids, and other small bodies made largely of ice.

This includes things such as planets, comets, asteroids, meteoroids and moons. The Solar System formed around 4.6 billion years ago. There are eight planets in the Solar System. The four inner planets are Mercury, Venus, Earth and Mars while the four outer planets are Jupiter, Saturn, Uranus and Neptune.

BY:BASHIL AHAMEDCLASS:VI-B_M

ABU DHABI INDIAN SCHOOL BRANCH-1 AL WATHBA