Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
Planets!
0
%
0
0
0
Back
Restart
The universe is estimated to be about _____ billion years old.
14
Oops!
Okay!
“_______________” was the first astronomer (recorded in history) to propose that the Earth was not the center of the Universe
Nicolas Copernicus
Oops!
Okay!
What is the force of attraction between massive objects called? Eg: The pull between Earth & Moon?
gravitational force
Oops!
Okay!
What is the word for an extremely dense area with gravity so strong not even light can escape it?
a black hole
Oops!
Okay!
What star is this arrow pointing to?
Polaris aka “The North Star”
Oops!
Okay!
What is the unit that measures the distance light travels in one year?
a lightyear!
Oops!
Okay!
The shape of the Earth’s orbit around the sun is best described as...
an ellipse
Oops!
Okay!
What is this?
a nebula
Oops!
Okay!
According to Kepler’s Law of Planetary Motion, the farther a planet is located from the Sun, the....
longer its period of revolution
Oops!
Okay!
What is the term that refers to the brightness of a star?
luminosity
Oops!
Okay!
What is the planet in our solar system that the most moons?
Saturn! (the photo is of the LARGEST moon of Saturn named Titan)
Oops!
Okay!
What constellation is this?
Ursa Major aka “The Big Dipper”
Oops!
Okay!
Is this a geocentric model or a heliocentric model?
heliocentric
Oops!
Okay!
“________________” was the first person (recorded in history) to look through a telescope.
Galileo Galelei
Oops!
Okay!
Is this a geocentric model or a heliocentric model?
geocentric
Oops!
Okay!
“_______________” was a monk who was tortured and killed by the Catholic Church for his beliefs about an infinite universe?
Giordano Bruno
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies