Earth Science

1
Earth Science

• An overview of the
• Solar System

2
The Sun

• The sun is the biggest, brightest, and hottest
  object in the solar system.
• The sun is an ordinary star.
• The sun is made of about 70 hydrogen and 28
  helium.

3
Mercury

• Mercury is solid and is covered with craters.
• Mercury has almost no atmosphere.
• Mercury is the eighth largest planet.

4
Venus

• Venus is the sixth largest planet. Its about
  three-fourths the size of earth.
• The surface is rocky and very hot. The atmosphere
  completely hides the surface and traps the heat.

5
Earth

• Earth is the fifth largest planet and the third
  from the sun.
• Liquid covers 71 percent of the Earths surface.
• The Earth has one moon.

6
Moon
7
Mars

• Mars is the fourth planet from the sun.
• Mars has a thin atmosphere that contains mostly
  carbon dioxide.
• Mars has two small moons.

8
Moons of Mars

• Phobos
• Deimos

9
Jupiter
10
Jupiters Red Spot

• The Great Red Spot, a huge storm of swirling gas
  that has lasted for hundreds of years.
• Jupiter does not have a solid surface. The planet
  is a ball of liquid surrounded by gas.

11
Moons of Jupiter

• Jupiter has four large Galilean moons, twelve
  smaller named moons and twenty-three more
  recently discovered but not named moons.
• Well take a look at the four large Galilean
  moons which were first observed by Galileo in
  1610.

12
Io

• Io is the fifth moon of Jupiter. Its the third
  largest of Jupiters moons.
• Io has hundreds of volcanic calderas. Some of the
  volcanoes are active.

13
Europa

• Europa is the sixth of Jupiters moons and is the
  fourth largest.
• It is slightly smaller than the Earths moon.
• The surface strongly resembles images of sea ice
  on Earth. There may be a liquid water sea under
  the crust.
• Europa is one of the five known moons in the
  solar system to have an atmosphere.

14
Ganymede

• Ganymede is the seventh and largest of Jupiters
  known satellites.
• Ganymede has extensive cratering and an icy crust.

15
Callisto

• Callisto is the eighth of Jupiters known
  satellites and the second largest.
• Callisto has the oldest, most cratered surface of
  any body yet observed in the solar system.

16
Saturn

• Saturn is the second largest planet and the sixth
  from the sun.
• Saturn is made of materials that are lighter than
  water. If you could fit Saturn in a lake, it
  would float!

17
Rings of Saturn

• Saturns rings are not solid they are composed
  of small countless particles.
• The rings are very thin. Though theyre 250,000km
  or more in diameter, theyre less than one
  kilometer thick.

18
Uranus

• Uranus is the third largest planet and the
  seventh from the sun.
• Uranus is one of the giant gas planets.
• Uranus is blue-green because of the methane in
  its atmosphere.

19
Neptune

• Neptune is the fourth largest planet and the
  eight from the sun.
• Because of the orbits, from 1979 to 1999, Neptune
  was the ninth planet.
• Like Uranus, the methane gives Neptune its color.

20
Pluto

• Pluto is the smallest planet and usually the
  farthest from the sun.
• Pluto is the only planet that has not been
  visited by a spacecraft.