Our Solar System

1
Our Solar System

• Fifth Grade Presentation
• By,
• Andrea Gioulis

2
Our Solar System

• The sun is a star with nine planets orbiting
  around it.
• This family of planets is called the solar
  system.
• The planets all travel around the sun in the same
  direction, and are held in orbit by the
  gravitational pull of the sun.
• The orbits of the planets are slightly elliptical
  in shape.
• The nine known planets, in order of distance from
  the sun, are Mercury, Venus, Earth, Mars,
  Jupiter, Saturn, Neptune, and Pluto.

3
This is a computer generated image of our solar
system.
4
The Sun

• The sun is a star which is the center of our
  solar system.
• The sun is composed of gases.
• It has a diameter of 1,400,00 km.
• Temperatures on the sun can reach as high as
  15,000,000 Kelvin.

5
Mercury

• Mercury is the smallest planet.
• It is the closest planet to the sun, and this
  accounts for its extremely high surface
  temperatures.
• There is no air or water on Mercury.

6
Venus

• Next to the sun and moon, Venus is the brightest
  object in the sky.
• Venus has very heavy cloud cover and strong
  surface winds.

7
Earth

• Three fourths of the Earths surface is covered
  with water.
• The entire pleat is surrounded by an immense body
  of air called the atmosphere.
• Earth has one natural satellite, the moon.

8
Mars

• Mars shines with a reddish glow. The reddish
  color of the soil is due to the rusting of iron
  rich minerals as they react with the soil and
  water.
• The Polar Caps of Mars are 1-3 km thick and are
  more extensive during the Martian winter.
• Mars has two natural satellites, Phobos and
  Deimos.

9
Jupiter

• Jupiter is the largest planet in the solar
  system.
• The surface of Jupiter has light and dark bands
  of gaseous clouds covering its liquid hydrogen
  core.
• A striking feature of this planet is the Great
  Red Spot, which changes periodically in color and
  brightness.

10
Saturn

• Saturn is the second largest planet in our solar
  system.
• It is known to have at least 21 moons.
• Saturn is a unique planet because it has many
  rings.

11
Uranus

• Uranus is the third largest planet.
• Its atmosphere is composed of methane, giving the
  planet a greenish appearance.

12
Neptune

• Neptune is often referred to as a twin of Uranus
  because it is about the same size and has the
  same color of atmosphere.
• Neptune has two moons.

13
Pluto

• Pluto is the smallest planet.
• It is the furthest planet from the sun.
• The existence of Pluto in our solar system was
  unknown until its discovery in 1930.

14
Want to review?Click on one of the following
links.

• Our Solar System Jupiter
• The Sun Saturn
• Mercury Uranus
• Venus Neptune
• Earth Pluto
• Mars

15
All of the images used in this presentation were
found on Nasas website. If you are interested
in learning more, please visit www.nasa.gov