59 terms

Study guide Planets

Name the inner planets...
Mercury, Venus, Earth, Mars
What is the criteria needed for an object to be considered a planet? Why is Pluto not a planet?
1. Needs to orbit Sun 2. Needs to have enough gravity to pull itself into a spherical shape 3. needs to dominate its neighborhood.

Pluto does not dominate its neighborhood, meaning it does not consume objects that are nearby like the other planets do.
If we did not have a magnetic field, what would happen to the earth?
The solar winds would blast our planet, evaporating the water and making earth unlivable like Mars.
Venus is also known as
Earth's sister planet ; Earth's twin
This planet is composed mainly of methane giving it its blue color
Who discovered Uranus and when?
William Herchel in 1781
Neptune has _____ rings.
5; 3 of which are considered the main rings.
Which planet has the hottest temperatures in our solar system?
The largest moon in the solar system is
Which planet is the farthest from the sun?
Saturn's atmosphere is mostly composed of
What is the Kuiper Belt? Where is it located?
A place where comets exist. It is a region outside the orbit of Neptune.
Neptune gives off more heat than it receives from the sun because
it has its own heat source
Where is Earth's magnetic field generated from?
The core
Mars' two moons are
Phobos and Deimos
Which is the 7th planet from the sun?
The largest planet in our solar system is
Earth's atmosphere is mostly made up of
Which planet is the 3rd planet from the sun?
Which planet is tilted almost on its side?
How many days does it take Mercury to orbit the sun?
88 earth days
How many moons does Saturn have?
What is rotation?
the spinning motion of a body on its axis
Which planet is the 2nd closest to the sun?
What is the name of the largest mountain/volcano in our solar system?
Olympus Mons
Where did Earth get all the water it has today?
Blizzard of Asteroids and comets came flying into the inner solar system and hit earth bringing water in the form of ice with them. They brought just the right amount.
Neptune's largest moon is called
What is revolution?
the elliptical motion of a body as it orbits another body in space.
The moon Miranda orbits which planet?
This planet has the biggest range in surface temperatures.
Sulfuric Acid clouds can be found on this planet.
What two factors enable Earth to support life?
1. Formed at just the right distance from the sun. 2. We have water.
Terrestial planet closest to the sun
What characteristics do outer planets share?
They are large, don't have any known solid surfaces, have multiple moons
Which planet is the largest volcano located in the solar system?
Which planet is the 6th planet from the sun?
Name the Jovian Planets
Jupiter, Saturn, Uranus, Mars
This planet is named after the Greek/Roman god of War
Planet gives off more heat than it receives from the sun
Jupiter, Neptune, Saturn
Gas giant furthest away from sun.
What is the name of the largest basin on Mercury?
Caloris Basin
This planet is the only planet besides Earth with some form of water.
How many Earths can fit into Jupiter?
How many moons does Neptune have?
Like Jupiter, these planets are mostly composed of hydrogen and helium .
Saturn, Uranus, Neptune
This planet is about 15 times more massive than Earth
Which planet(s) do not have any moons?
Mercury, Venus
Which planet is the 4th planet from the sun?
Scientists believe that the Earth's core is made of
This planet has the densest atmosphere of all the inner planets.
Where is the Great Red Spot located?
This planet has the thinnest atmosphere.
What characteristics do inner planets share?
They are small, rocky, and dense.
Which planet is the 5th planet from the sun?
The sun rises in the west and sets in the east on this planet.
Where is the Great Dark Spot located?
This planet's atmosphere contains belts of highly visible clouds.
Jupiter, Neptune
Name the planets in order (closest to the sun to farthest)
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, & Neptune.
What does the Earth's Magnetic Field protect us from?
Solar Winds