SOLAR SYSTEM 01.02.12.pptx

7/30/2019 SOLAR SYSTEM 01.02.12.pptx

1/21

An Introduction...In our solar system, nine planets circle around our Sun. The Sun sits in

the middle while the planets travel in circular paths (called orbits) around it.

These nine planets travel in the same direction (counter- clockwise lookingdown from the Sun's north pole). The picture on the right shows the differentpaths and positions of each planet.
http://kids.nineplanets.org/portfoli.htmhttp://kids.nineplanets.org/portfoli.htm


2/21


3/21


4/21

This picture below shows how big (and little!) the nine planets are in relation to each

other. Can you see tiny Mercury in the very bottom, left-hand corner? Pluto is the teeny-tiny planet in the very top, right-hand corner

These nine planets are grouped in many different ways. Two easy groupings are

composition (what they are made up of) and size.

COMPOSITIONROCKY PLANETS (Mercury - Venus - Earth - Mars - Pluto)

The rocky planets are mostly made up of rock and metal. These planets are very heavyand move slowly. They also do not have rings and very few moons.

GAS PLANETS (Jupiter - Saturn - Uranus - Neptune)

The gas planets are mostly made up of gases (hydrogen and helium). These planets are

light for their sizes (just like a big air balloon) and move quickly. They have rings and lots

of moons.
http://kids.nineplanets.org/mercury.htmhttp://kids.nineplanets.org/pluto.htmhttp://kids.nineplanets.org/mercury.htmhttp://kids.nineplanets.org/venus.htmhttp://kids.nineplanets.org/earth.htmhttp://kids.nineplanets.org/mars.htmhttp://kids.nineplanets.org/pluto.htmhttp://kids.nineplanets.org/jupiter.htmhttp://kids.nineplanets.org/saturn.htmhttp://kids.nineplanets.org/uranus.htmhttp://kids.nineplanets.org/neptune.htmhttp://kids.nineplanets.org/neptune.htmhttp://kids.nineplanets.org/uranus.htmhttp://kids.nineplanets.org/saturn.htmhttp://kids.nineplanets.org/jupiter.htmhttp://kids.nineplanets.org/pluto.htmhttp://kids.nineplanets.org/mars.htmhttp://kids.nineplanets.org/earth.htmhttp://kids.nineplanets.org/venus.htmhttp://kids.nineplanets.org/mercury.htmhttp://kids.nineplanets.org/pluto.htmhttp://kids.nineplanets.org/mercury.htm


5/21

SMALL SIZE PLANETS (Mercury - Venus - Earth - Mars - Pluto)

The small planets have diameters less than 13000 km across. Mercury and Pluto are

sometimes referred to as lesser planets because they are so tiny.

GIANT PLANETS (Jupiter - Saturn - Uranus - Neptune)

The giant planets have diameters greater than 48000 km. The giant planets are

sometimes also referred to as gas giants.

Diameter is the length of a straight line through the center of an object - the object

in our case being the planets! In other words, diameter would be how big across theplanet is.

THE SOLAR SYSTEM IS MADE UP OF TWO PARTS:

THE INNER SOLAR SYSTEM CONTAINS MERCURY, VENUS, EARTH AND MARS. THESE

FOUR PLANETS ARE CLOSEST TO THE SUN.

THE OUTER SOLAR SYSTEM CONTAINS JUPITER, SATURN, URANUS, NEPTUNE AND

PLUTO.

THE INNER PLANETS ARE SEPARATED FROM THE OUTER PLANETS BY THE

ASTEROID BELT.
http://kids.nineplanets.org/mercury.htmhttp://kids.nineplanets.org/venus.htmhttp://kids.nineplanets.org/earth.htmhttp://kids.nineplanets.org/mars.htmhttp://kids.nineplanets.org/pluto.htmhttp://kids.nineplanets.org/metric2.htmhttp://kids.nineplanets.org/jupiter.htmhttp://kids.nineplanets.org/saturn.htmhttp://kids.nineplanets.org/uranus.htmhttp://kids.nineplanets.org/neptune.htmhttp://kids.nineplanets.org/metric2.htmhttp://kids.nineplanets.org/mercury.htmhttp://kids.nineplanets.org/venus.htmhttp://kids.nineplanets.org/earth.htmhttp://kids.nineplanets.org/mars.htmhttp://kids.nineplanets.org/portfoli.htmhttp://kids.nineplanets.org/jupiter.htmhttp://kids.nineplanets.org/saturn.htmhttp://kids.nineplanets.org/uranus.htmhttp://kids.nineplanets.org/neptune.htmhttp://kids.nineplanets.org/pluto.htmhttp://kids.nineplanets.org/asteroid.htmhttp://kids.nineplanets.org/asteroid.htmhttp://kids.nineplanets.org/pluto.htmhttp://kids.nineplanets.org/neptune.htmhttp://kids.nineplanets.org/uranus.htmhttp://kids.nineplanets.org/saturn.htmhttp://kids.nineplanets.org/jupiter.htmhttp://kids.nineplanets.org/portfoli.htmhttp://kids.nineplanets.org/mars.htmhttp://kids.nineplanets.org/earth.htmhttp://kids.nineplanets.org/venus.htmhttp://kids.nineplanets.org/mercury.htmhttp://kids.nineplanets.org/metric2.htmhttp://kids.nineplanets.org/neptune.htmhttp://kids.nineplanets.org/uranus.htmhttp://kids.nineplanets.org/saturn.htmhttp://kids.nineplanets.org/jupiter.htmhttp://kids.nineplanets.org/metric2.htmhttp://kids.nineplanets.org/pluto.htmhttp://kids.nineplanets.org/mars.htmhttp://kids.nineplanets.org/earth.htmhttp://kids.nineplanets.org/venus.htmhttp://kids.nineplanets.org/mercury.htm


6/21

THE INNER PLANETS


7/21


8/21


9/21


10/21


11/21

THE OUTER PLANETS


12/21


13/21


14/21


15/21


16/21


17/21

WHAT IS THE SOLAR SYSTEM?

The Solar System is made up of all the planets that orbit our Sun. In

addition to planets, the Solar System also consists of moons, comets,

asteroids, minor planets, and dust and gas.

Everything in the Solar System orbits or revolves around the Sun. The

Sun contains around 98% of all the material in the Solar System. The

larger an object is, the more gravity it has. Because the Sun is so

large, its powerful gravity attracts all the other objects in the SolarSystem towards it. At the same time, these objects, which are

moving very rapidly, try to fly away from the Sun, outward into the

emptiness of outer space. The result of the planets trying to fly away,

at the same time that the Sun is trying to pull them inward is that

they become trapped half-way in between. Balanced between flyingtowards the Sun, and escaping into space, they spend eternity

orbiting around their parent star.


18/21

HOW DID THE SOLAR SYSTEM FORM?

This is an important question, and one that is difficult for scientists to

understand. After all, the creation of our Solar System took place billions of

years before there were any people around to witness it. Our own evolution is

tied closely to the evolution of the Solar System. Thus, without understanding

from where the Solar System came from, it is difficult to comprehend how

mankind came to be.

Scientists believe that the Solar System evolved from a giant cloud of dust

and gas. They believe that this dust and gas began to collapse under the weight

of its own gravity. As it did so, the matter contained within this could beginmoving in a giant circle, much like the water in a drain moves around the center

of the drain in a circle.

At the center of this spinning cloud, a small star began to form. This star

grew larger and larger as it collected more and more of the dust and gas that

collapsed into it.Further away from the center of this mass where the star was forming,

there were smaller clumps of dust and gas that were also collapsing. The star in

the center eventually ignited forming our Sun, while the smaller clumps became

the planets, minor planets, moons, comets, and asteroids.


19/21

A GREAT STORM

Once ignited, the Sun's powerful solar winds began to blow.

These winds, which are made up of atomic particles being blown

outward from the Sun, slowly pushed the remaining gas and dust outof the Solar System.

With no more gas or dust, the planets, minor planets, moons,

comets, and asteroids stopped growing. You may have noticed that

the four inner planets are much smaller than the four outer planets.

Why isthat?Because the inner planets are much closer to the Sun, they are

located where the solar winds are stronger. As a result, the dust and

gas from the inner Solar System was blown away much more quickly

than it was from the outer Solar System. This gave the planets of the

inner Solar System less time to grow.Another important difference is that the outer planets are largely

made of gas and water, while the inner planets are made up almost

entirely of rock and dust. This is also a result of the solar winds. As

the outer planets grew larger, their gravity had time to accumulate

massive amounts of gas, water, as well as dust.


20/21

THE SOLAR SYSTEM HAS OVER 100 WORLDS

It is true that there are only eight planets. However, the Solar Systemis made up of over 100 worlds that are every bit as fascinating. Some

of these minor planets, and moons are actually larger than the planet

Mercury!

Others, such as Io, have active volcanoes. Europa has a liquid waterocean, while Titan has lakes, rivers, and oceans of liquid Methane.

You can read more about these amazing worlds by clicking here.


21/21

Documents

SOLAR SYSTEM 01.02.12.pptx