Your SlideShare is downloading. ×
0
The Solar System
Earth Science
1st Semester
• The sun is the central
hub of a rotating wheel
of planets, their moons,
and many other smaller
celestial objects, such a...
• The planets traveling outwards from the sun are as
follows: Mercury, Venus, Earth, Mars, Jupiter, Saturn,
Uranus, and Ne...
• Due to the sun’s gravity, all planets move in an
elliptical orbit in the same direction around
the sun.
• The closer a p...
The Planets: An Overview
• The planets fall into two groups – the
terrestrial planets, and the Jovian planets.
QuickTime™ ...
• The terrestrial
planets include
Mercury, Venus,
Earth, and Mars.
• They are relatively
small and rocky.
• Since they are...
• The Jovian planets
include Jupiter, Saturn,
Uranus, and Neptune.
• They are huge planets
made primarily of gas.
• Since ...
• Size is the most notable
difference between the
terrestrial and Jovian
planets.
• Density, chemical
makeup, and the rate...
• The planets have
different densities
because of their
different chemical
compositions.
QuickTime™ and a
decompressor
are...
The Interiors of the Planets
• The substances that make up the planets are divided
into three groups based on their meltin...
• Ices: Include ices made from compounds of
ammonia, methane, carbon dioxide, and
water.
• These particular ices have inte...
• Terrestrial planets are dense and consist
mostly of rocky and metallic substances.
• They have very little gas and ice.
...
• The Jovian planets are less dense because they
contain:
• Large amounts of gases like hydrogen and
helium.
• Ices made f...
QuickTime™ and a
decompressor
are needed to see this picture.
The Atmospheres of the
Planets
• A planet’s ability to hold
onto an atmosphere
depends on its mass and
temperature.
• Smal...
• Therefore, terrestrial
planets have very thin
atmospheres.
• Jovian planets however,
have very thick
atmospheres compose...
Formation of the Solar
System – Nebular Theory
• Nebula are clouds of
dust and gas in space.
• These thin, gaseous
clouds ...
• According to the
nebular theory, the sun
and planets formed from
just such a rotating disk
of dust and gases.
• As the s...
Planetesimals
• Planets began to grow as
solid bits of matter
began to collide and
clump together in a
process known as
ac...
• As the collisions
increased, the
planetesimals grew in
size, eventually growing
large enough to exert a
gravitational pu...
• In the inner solar
system, only metals and
rocks with high melting
points and high densities
could remain.
• The sun is ...
• Materials with low
melting points and low
densities (like gases)
would be forced into the
outer solar system due
to the ...
• The Jovian planets were
able to form from
accumulating solid bits
of matter but also from
large quantities of ice.
• Eve...
Upcoming SlideShare
Loading in...5
×

Solar System

502

Published on

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
502
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
8
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Transcript of "Solar System"

  1. 1. The Solar System Earth Science 1st Semester
  2. 2. • The sun is the central hub of a rotating wheel of planets, their moons, and many other smaller celestial objects, such as comets and asteroids. • The sun is estimated to contain 99.85% of the mass of our solar system. QuickTime™ and a decompressor are needed to see this picture.
  3. 3. • The planets traveling outwards from the sun are as follows: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. • Pluto is no longer considered a planet. QuickTime™ and a decompressor are needed to see this picture.
  4. 4. • Due to the sun’s gravity, all planets move in an elliptical orbit in the same direction around the sun. • The closer a planet is to the sun, the faster it travels in its orbit. QuickTime™ and a decompressor are needed to see this picture.
  5. 5. The Planets: An Overview • The planets fall into two groups – the terrestrial planets, and the Jovian planets. QuickTime™ and a decompressor are needed to see this picture.
  6. 6. • The terrestrial planets include Mercury, Venus, Earth, and Mars. • They are relatively small and rocky. • Since they are closer to the sun they are also known as the inner planets. QuickTime™ and a decompressor are needed to see this picture.
  7. 7. • The Jovian planets include Jupiter, Saturn, Uranus, and Neptune. • They are huge planets made primarily of gas. • Since they are further from the sun, they are known as outer planets. QuickTime™ and a decompressor are needed to see this picture.
  8. 8. • Size is the most notable difference between the terrestrial and Jovian planets. • Density, chemical makeup, and the rate of rotation are other ways in which the two groups of planets differ. QuickTime™ and a decompressor are needed to see this picture.
  9. 9. • The planets have different densities because of their different chemical compositions. QuickTime™ and a decompressor are needed to see this picture.
  10. 10. The Interiors of the Planets • The substances that make up the planets are divided into three groups based on their melting points. • Gases: Hydrogen and Helium – have melting points near absolute zero (-273 °C or 0 kelvin) • Rocks: made from compounds of silicates and metallic iron, both of which have melting points above 700°C.
  11. 11. • Ices: Include ices made from compounds of ammonia, methane, carbon dioxide, and water. • These particular ices have intermediate melting points.
  12. 12. • Terrestrial planets are dense and consist mostly of rocky and metallic substances. • They have very little gas and ice. QuickTime™ and a decompressor are needed to see this picture.
  13. 13. • The Jovian planets are less dense because they contain: • Large amounts of gases like hydrogen and helium. • Ices made from water, ammonia, and methane. • The outer planets cores contain rocky and metallic materials.
  14. 14. QuickTime™ and a decompressor are needed to see this picture.
  15. 15. The Atmospheres of the Planets • A planet’s ability to hold onto an atmosphere depends on its mass and temperature. • Small, relatively warm planetary bodies, with small surface gravity cannot hold much gas. QuickTime™ and a decompressor are needed to see this picture.
  16. 16. • Therefore, terrestrial planets have very thin atmospheres. • Jovian planets however, have very thick atmospheres composed of hydrogen, helium, methane and ammonia. • They are able to retain thick atmospheres due to their large mass, and low temperatures. QuickTime™ and a decompressor are needed to see this picture.
  17. 17. Formation of the Solar System – Nebular Theory • Nebula are clouds of dust and gas in space. • These thin, gaseous clouds begin to rotate in space and collapse in upon themselves. • As they continue to contract, they begin to spin faster. QuickTime™ and a decompressor are needed to see this picture.
  18. 18. • According to the nebular theory, the sun and planets formed from just such a rotating disk of dust and gases. • As the speed of rotation increased, the center of the disk began to flatten out and increase in temperature. • The sun eventually formed in this location. QuickTime™ and a decompressor are needed to see this picture.
  19. 19. Planetesimals • Planets began to grow as solid bits of matter began to collide and clump together in a process known as accretion. • The colliding matter formed small irregularly shaped bodies known as planetesimals. QuickTime™ and a decompressor are needed to see this picture.
  20. 20. • As the collisions increased, the planetesimals grew in size, eventually growing large enough to exert a gravitational pull on surrounding objects and pull them in. • In this fashion the planetesimals added more mass and grew into true planets. QuickTime™ and a decompressor are needed to see this picture.
  21. 21. • In the inner solar system, only metals and rocks with high melting points and high densities could remain. • The sun is too hot for materials with low melting points to stay solid. • The sun does not attract items with low densities towards it. QuickTime™ and a decompressor are needed to see this picture.
  22. 22. • Materials with low melting points and low densities (like gases) would be forced into the outer solar system due to the sun’s heat and the solar wind. • In the outer solar system, the colder temperatures allowed materials with low melting points to form up as ice. QuickTime™ and a decompressor are needed to see this picture.
  23. 23. • The Jovian planets were able to form from accumulating solid bits of matter but also from large quantities of ice. • Eventually, the Jovian planets grew so large that they were able to attract even the lightest gases like hydrogen and helium. QuickTime™ and a decompressor are needed to see this picture.
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×