Planets
What is the fourth largest planet in the solar system?
Neptune
Which planet has the Red Spot?
Jupiter
How many moons does mercury have?
Zero
What are stars mostly made of.
Hydrogen, Helium
Who discovered the heliocentric theory?
Copernicus
Which planets orbit is 88 earth days?
Mercury
Which planet rains sulfuric acid?
Venus
Which moon takes 29.5 days to orbit its planet?
Earth
What are the three things a star becomes when it dies?
Black Hole, Neutron Star, White Dwarf
What is cosmic background radiation?
Radiation left over from the Big Bang
Which planet has the largest volcano in the solar system?
Mars
Which Planet's average temperature is 14 degrees celsius?
Earth
What is the name of the planet that hit the earth and ended up creating the moon?
Theia
What are properties of a star determined by?
Mass
The universe is made up of 74% of what element?
Hydrogen
Which planets takes 225 earth days to orbit the sun?
Venus
Which Planet take 12 earth years to orbit the sun?
Jupiter
Which planet has about 62 moons?
Saturn
What is it called when two nuclei combine to form a larger nucleus, and eventually create a star?
Nuclear Fusion
How many stars is the milky way estimated to have?
100 billion to 200 billion
Which planet is 755 times the size of Earth?
Saturn
Which planet spins 3 times every 2 orbits?
Mercury
Which moon in our solar system might have liquid water on it?
Europa
Red Giant
How long ago was our solar system formed?
4.6 billion years ago