Solar System 1
What is the Sun mostly made of?
Hydrogen and helium
Which planet is closest to the Sun?
Mercury
What percentage of Earth’s surface is covered in water?
71%
What is the name of the massive storm on Jupiter?
The Great Red Spot
What is different about how Uranus spins?
It spins on its side
How many planets orbit the Sun?
Eight
Why is Venus hotter than Mercury?
Venus has thick clouds that trap heat
Why is Mars called the "Red Planet"?
Its surface has a rusty color
What are Saturn’s rings made of?
Ice and rock
What is the windiest planet in the solar system?
Neptune
Which planet is the largest in the solar system?
Jupiter
How fast does Mercury orbit the Sun?
29 miles per second
What kind of surface does Mars have?
A rocky surface
How many moons does Saturn have?
274 moons
Why are Uranus and Neptune called "ice giants"?
They are very cold and far from the Sun
Which type of planets are colder, gas giants or rocky planets?
Gas Giants
What two planets do not have moons?
Mercury & Venus
What are scientists looking for on Mars to see if humans could live there?
Water, atmosphere, and resources
What two gases make up most of Jupiter and Saturn’s atmospheres?
Hydrogen and helium
How long does each season last on Uranus?
21 years
What would happen to life on Earth without the Sun’s energy?
Life would not be possible.
Venus is called Earth’s twin because it is similar in what way?
It is almost the same size
How many years do you think it would take to travel to Mars?
3 years
Can you walk on Jupiter or Saturn? Why or why not?
No, they are gas giants with no solid surface
How can we see Uranus and Neptune?
Only with telescopes or spacecraft