Chapter 30.3 & 30.4 Flashcards
Jupiter
Fifth planet from the Sun
Saturn
Sixth planet from the Sun
Uranus
Seventh planet from the Sun
Neptune
Eighth planet from the Sun
Dwarf Planet
Nearly round objects in orbit around the Sun
Comet
Composed of dust and rock particles, ice, methane, and ammonia
Asteroid
Rocky objects that are similar to the material in planets composition
Meteoroid
Sand to boulder-sized objects in the solar system
Sedna
A distant planetoid
Extraterrestrial Life
Life beyond Earth
Which space probes flew past Jupiter in 1979?
Voyager 1 & 2
Which space probe reached Jupiter in 1995?
Galileo
What did the Voyager probes and Galileo study?
Composition, structure, and motion of Jupiter’s atmosphere
How many moons does Jupiter have?
63
What is Saturn’s most common feature?
It’s rings
What are Saturn’s rings made out of?
Particles of water-ice
What is the name of Saturn’s largest moon?
Titan
What is the name of the spacecraft that approached Saturn in 2004?
Cassini-Huygens
What was the Huygens mission?
To land on Titan
Does Uranus have moons?
Yes
How is Uranus’s axis tilted?
Almost parallel to it’s plane of orbit
What color us Uranus
Blue
Which space probe is the only probe to reach Neptune?
Voyager 2
What makes Neptune bluer than Uranus?
It has 3% methane in it’s atmosphere
How many moons does Neptune have?
13 moons
What is Neptune’s largest moon?
Triton
What are the names of the three dwarf planets?
Pluto, Eris, Ceres
What is the bright cloud of a comet called?
A coma
When meteoroids enter the Earth’s atmosphere, what are they called?
Meteors, or shooting stars
When a meteor strikes Earth’s surface, what are they called?
Meteorites
What does AU stand for, and equal?
Astronomical Unit, 150 million km
