all about planets by: maggie watts. mercury this planet is not large enough for its gravity to hold...
TRANSCRIPT
All About Planets
By: Maggie Watts
Mercury
MercuryThis planet is not large enough for its gravity to hold onto a moon or much of an atmosphere.
Venus.
VenusThe surface is hot (869F) and the atmosphere is dense and contains carbon dioxide and sulfuric acid.
Earth
EarthThis planet has volcanic eruptions and earthquakes. Sunlight, a nitrogen and oxygen-rich atmosphere, large oceans and the greenhouse effect make climates that supports life.
Mars
MarsThe largest canyon in the solar system, Valles Marineris, as wide as the United States, might have had running water. Largest volcano in the solar system, Olympus Mons.
Asteroids
AsteroidsA wide belt of small objects that orbit the sun between Mars and Jupiter. Sometimes they are called minor planets. They might be remains of a planet pulled apart or leftovers from the formation of the solar system.
Jupiter
JupiterThe largest planet has an atmosphere of cold hydrogen gas. It has many moons, so far 17 have been found. It has a giant red spot that is thought to be a storm.
Saturn
SaturnMostly gas, but less dense, making it very light that it could float on water. It has 18 moons. It is known for its beautiful rings which are made up of millions of bits of ice.
Uranus
Uranus
Atmosphere of methane gas and a set of dark, narrow rings that run from top to bottom, instead of around.
Neptune
Neptune
Is the bluest planet because of its methane gas atmosphere. Its moon, Triton, has volcanoes.
Pluto
PlutoDoes not have a thick atmosphere. Has one moon called Charon, discovered in 1930. No longer considered a planet, but a minor planet.
Comets
CometsThese are chunks of ice and
rock left over from the formation of our solar system. They move around the sun in long oval-shaped orbits.
Meteoroids
Meteoroids
Part of the dust and gas trail left behind by a comet.
Meteors
MeteorsParts or pieces of meteoroids that stream into our atmosphere from space. Often not bigger than a grain of sand, causing a flash of light, sometimes called shooting stars.
Meteorite
Meteorite
A piece of rock that falls and lands on the earth from space.
SETI
SETISearch for Extraterrestrial Intelligence
Message beamed into space by world’s biggest radio telescope at Arecivo, Puerto Rico (1992)
Coded information
What is the relationship between
comets and meteors??
Meteors were once meteoroids (pieces of dust and rocks) found in the tail of the comets, but have fallen to Earth.