No student devices needed. Know more
60 questions
______________________ is the closest planet to the sun.
Mercury
Venus
Earth
Mars
You can see Mercury at dawn, dusk, or during a ____________________________.
solar eclipse
lunar eclipse
leap year
solar flare
Mercury can be extremely _____________ or extremely _________________
dark , light
liquid , gaseous
fast , slow
hot , cold
It takes _____________ Earth days for Mercury to orbit the sun.
72
88
112
145
Mercury rotates very slowly...once every ____________ Earth days.
24
36
59
63
Mercury has ____________ satellites.
0
2
4
5
The inside of Mercury is a lot like the inside of _______________________.
Venus
Earth
Jupiter
Neptune
____________________ is the 2nd planet from the sun.
Mercury
Venus
Earth
Mars
Besides the sun and moon, _____________________ is the brightest object in the sky.
Venus
Mars
Saturn
Jupiter
Venus is named after the ___________________ goddess of beauty and love
Greek
Roman
Myan
Latin
Venus is the ____ largest planet and just a little smaller than Earth.
4th
5th
6th
7th
Venus is known as ______________ sister.
Jupiter's
Earth's
Neptune's
Mercury's
You would weigh ___________ less on Venus than on Earth.
10%
15%
20%
25%
One day on Venus is equal to _________________ Earth days.
25
68
112
243
________________________________ makes up 96% of Venus' atmosphere and traps heat from the sun.
Carbon Dioxide
Carbon Monoxide
Hydrogen
Helium
______________________ is the hottest planet.
Mercury
Venus
Earth
Mars
__________________ is the only planet that can support life.
Venus
Earth
Jupiter
Saturn
Earth's atmosphere traps the sun's heat while blocking harmful ________________________________.
radiation
heat
gamma rays
ultraviolet rays
Earth's atmosphere is made up of about _________________ oxygen
21%
30%
43%
%7%
_____________________ of Earth is covered in water.
30%
44%
65%
71%
Earth is also called the ________________ planet.
green
blue
gray
brown
Earth is the __________ largest planet
3rd
4th
5th
6th
Mars is the ___________ planet from the sun.
4th
5th
6th
7th
Mars is terrestrial and is made of ______________________________.
gas and water
rocks and minerals
ice and debris
asteroids and comets
Mars is named after the Roman god of ______________.
friendship
war
water
mountains
Mars is red in color because its surface is covered in _______________________________.
iron oxide
iron sulfide
iron carbonite
iron phosphate
Mars has massive ____________________ storms.
rain
dust
winter
snow
The average temperature on Mars is ________ degrees Celsius.
-24
-35
-57
-63
Mars has two moons called _____________________________________.
Phobos and Ganymede
Titan and Deimos
Phobos and Deimos
Ganymede and Titan
________________ is the largest planet and home to the largest storm.
Mars
Jupiter
Saturn
Uranus
The storm on Jupiter is called the _______________________________.
Great Red Spot
Great Hurricane
Great Dust Storm
Great Black Hole
The winds on Jupiter blow up to ________________ kilometers per hour.
200
300
400
500
Jupiter is __________ times more massive than Earth.
220
320
420
520
Jupiter has _________ times the mass of all of the other planets put together.
2
3
4
5
Jupiter spins on its axis every __________ hours.
10
20
30
40
Jupiter is a gas giant made of mostly _____________________________________________.
oxygen and nitrogen
carbon dioxide and hyrdogen
hydrogen and helium
nitrogen and helium
Saturn's rings are made of _________________________.
dust and ice
asteroids and meteorites
dust and water
ice and comets
On Saturn, the rings ______________________ the sun's rays to produce the pretty colors.
reflect
deflect
refract
block
Saturn's rings are more than _______________________ kilometers in diameter.
100,000
130,000
195,000
270,000
Saturn has about ____________ moons.
20
30
45
60
Saturn has the moon called ___________ which is the 2nd largest moon in the solar system.
Ganymede
Titan
Phobos
Deimos
Saturn is ____________ times more massive than Earth.
100
10
50
250
Saturn is called the ______________ of the solar system because of its rings.
pride
jewel
show off
glamour
Uranus is the _____________ planet from the sun.
6th
7th
8th
9th
Uranus is the _________ largest planet in the solar system
2nd
3rd
4th
5th
Uranus has about _________________ moons
10
30
45
65
______________ is the only planet who appears to be tipped on its side.
Mercury
Uranus
Neptune
Jupiter
Uranus is _____________________ in color.
gray-blue
blue-green
red-orange
black-gray
On Uranus, it takes ____________ years for it to circle the sun, which means it is dark at the poles for 42 straight years.
46
84
98
120
Uranus has a hard, rocky core surrounded by gasses like hydrogen, helium, and _________________.
methane
oxygen
nitrogen
carbon dioxide
Neptune is the _________ planet from the sun.
5th
6th
7th
8th
Neptune is the ______________________ of the gas giants.
biggest
smallest
densest
lightest
Neptune's upper atmosphere reaches almost ____________________ degrees Fahrenheit.
100
1,000
10,000
100,000
____________________ gas gives Neptune its blue color.
Methane
Helium
Hydrogen
Nitrogen
Neptune's biggest moon is called _____________________.
Triton
Titan
Ganymede
Phobos
Triton is the only major moon in the solar system with a __________________________________ orbit.
retrograde
circular
prograde
forward
Scientists discovered Neptune because they ____________________ that there might be another planet nearby influencing Uranus with its gravity.
inferred
misunderstood
guessed
misconstrued
Sun is a ____________________.
comet
star
meteor
asteroid
_____________ is so light that it could float in a bathtub if you could build one large enough.
Mars
Saturn
Jupiter
Uranus
The temperatures on __________________ get so hot that it could actually melt lead!
Venus
Mercury
Mars
Earth
Explore all questions with a free account