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Transcript
The Sun
The SUN is 109 times larger than Earth.
If it were the size of a skyscraper, Earth would be the size of a person.
Storms can be seen on its surface.
It produces big explosions of energy called solar flares.
solar flare
sun spots
solar wind
Mercury
• Mercury is the second smallest planet in are
solar system.
• It rotates the fastest around the sun.
• Mercury gets very cold since it has no
atmosphere.
Venus
The surface of Venus is mostly silicate rock.
Venus has many volcanoes.
The temperature goes to 484 degrees-- HOT!
Venus is boiling during the day.
Venus has many craters (by comets).
Venus is one of the brightest objects in our sky.
Earth
Earth and The Moon
Welcome to Planet Earth, the third planet from a star named the Sun. The Earth is shaped
like a sphere and composed mostly of rock. Over 70 percent of the Earth's surface is water.
The planet has a relatively thin atmosphere composed mostly of nitrogen and oxygen
Mars
•Mars is very bright, which makes it
easy to spot in the night sky. It was
named after the Roman god of war
because its reddish color reminded
the people of blood.
Olympus Mons is the
largest volcano in our solar
system!
Mars Land Rover
ASTEROID BELT
The Asteroid Belt
An asteroid is a big lump of rock or metal. Asteroids are
smaller than the 8 planets in the Solar System. Most
asteroids are between Mars and Jupiter in an area called
the Asteroid Belt. Just like the planets, the asteroid belt
moves around the Sun.
The biggest asteroid in the asteroid belt is called Ceres
which is about 1000 km long - the same length as the UK.
Most asteroids can be found in the
Asteroid Belt, which is located between
Mars and Jupiter.
Asteroids are rocky and metallic objects that
orbit the Sun.
Asteroids range in size from Ceres, which has
a diameter of about 1000 km, down to the size
of pebbles.
Jupiter
Jupiter, the fifth planet from the Sun, is the largest planet in our solar system.
Jupiter is so big that over 1,000 planets the size of Earth could fit into it!
It has over 60 moons and 2 rings.
JUPITER
The “Great Red Spot”
Is actually a huge
Storm system!
Here are a few of Jupiter’s moons.
Jupiter’s Red Spot
Saturn
Titan is a moon of Saturn that may have some
Conditions necessary for life! The picture on
the left shows an artist’s drawing of how Titan
might have looked when the Cassini-Huygen’s
probe dropped into its atmosphere in Dec., 2004.
• Saturn, the sixth planet from the Sun, is the
second largest planet in our solar system.
• It is often called the ringed planet because
many rings of dust and rocks surround it.
• Saturn also has over 30 moons.
Uranus
URANUS
Uranus gets its blue-green color from
methane gas. Uranus is a very unusual planet
because it sits on its side with north and south poles
sticking out the sides. It rotates around this axis,
making it look like a ball rolling around in a circle
around the Sun.
Neptune
Neptune, the eighth planet from the Sun, is
a very cold place.
• Occasionally, Pluto crosses
Neptune’s orbit.
• Its bluish color comes from its
atmosphere of methane gas.
PLUTO
• Pluto’ s largest moon Charon, is half the size of
Pluto.
• Since 2000 astronomers realized that Pluto is
not like all eight planets.
• Pluto is actually smaller than one of Neptune’ s
moon Triton.
Pluto
Some scientists believe that Pluto once
was one of Neptune’s moons, and that it
pulled out away from Neptune and made
its own orbit.
Clearest view to date
Of Pluto and Charon.
Comets
Comets are sometimes called dirty snowballs or "icy mudballs".
They are a mixture of ices (both water and frozen gases) and dust
that for some reason didn't get incorporated into planets when the
solar system was formed. This makes them very interesting as
samples of the early history of the solar system.
METEOROIDS
• Meteoroids are small pieces of stone or
metal traveling in space.
• Most meteoroids are no bigger than a
pebble.
• Large meteoroids are believed to come
from the asteroid belt .
SO WHAT IS A METEORITE?
• A meteorite is a natural object from space that survives
passage through the Earth's atmosphere and lands on
the Earth's surface. In other words, a meteorite is
something you can hold in your hand, unlike a meteor
(shooting star), which burns up in the atmosphere. The
fall of a meteorite is almost always a very spectacular
affair, so that there is a bright fireball, sonic booms, a
dust trail and, if the meteorite was big enough, an
impact crater.
Meteorites
The largest single meteorite found in
the United States is the fifteen ton
Willamette (Oregon) iron meteorite
found in 1902.
Large meteorites that crashed onto the Earth long ago made craters like
those found on the Moon. The Barringer Meteorite Crater near Winslow,
Arizona is believed to have been formed about 49,000 years ago by the impact
of a 300,000 ton meteorite. The Hoba iron meteorite is the largest single
meteorite known. Its present weight is estimated at 66 tons.
Comets
Comet tails are made of dust and
electrically charged gasses called
ions. The tail made of dust is left
behind in the comet's orbit in such a
manner that it often forms a curved
tail.
•
•
•
•
Chunks of ice, dust, rock.
Comets are millions of kilometers long.
100,000 comets orbit the sun.
It’s light is reflecting sun light.
THE FINAL FRONTIER
•