The amount of light-minutes it takes for the sun's light rays to reach Earth.
What is 8.3
100
A day on Mercury is how many Earth Days
What is 59
100
This Galilean moon contains mostly ice
What is Europa
100
A comet has this many tails
What is 2
100
The ion tail on a comet blows in this direction
What is away from the sun
200
The inner planets are called...?
What is terrestrial
200
The Earth has this kind of rotation
What is prograde
200
what is it called when earth comes between the sun and the moon and the shadow of Earth falls on the moon.
What is a lunar eclipse
200
Saturn's largest moon
What is Titan
300
Another word for gas giants
What is Jovial?
300
The time an object takes to revolve around the sun once is called....
What is period of revolution?
300
what gases are released in the upper atmosphere of saturn
What is methane, ammonia, and ethane
300
The Earth has this rotation
What is prograde
300
This planet is tilted on its side
What is Uranus
400
The seventh planet
What is Uranus?
400
Retrograde has what type of rotation
What is clockwise?
400
Uranus's axis of rotation is almost________ and lies almost in the plane of its orbit.
What is 90 degrees
400
When the moon is waning, the sunlight part is getting ________.
What is smaller
400
This is why one side of Pluto always faces Charon(Pluto's moon)
Charon's period of revolution is the same as Pluto's period of rotation
500
What instrument was discovered to study the planets and stars and who invented it
What is the telescope and who is Galileo?
500
Describe how the green house works on venus
C02 traps thermal energy from sunlight. This causes Venus's surface temperature to be very high
500
What are the three theories of the formation of the moon
1) The moon was a separate body captured by Earth's gravity
2) The moon formed at the same time and from the same materials as Earth
3) The newly formed Earth was spinning so fast that a piece flew off and became the moon
500
During this kind of eclipse, the disk of the moon completely covers the disk of the sun
What is solar eclipse
500
This moon is the most volcanically active body in the solar system. What is it and why is it like that
What is Io. It is stuck in the between the gravitational pull of Jupiter and Europa, which stretches it and casuses it to heat up.