What nickname does Venus have because of its similar size to Earth?
Earth's sister planet.
Why is Mars called the "Red planet"?
Because of the rust in its spoil and rocks?
What is Venus's atmosphere mostly made up of?
Carbon dioxide.
How many moons does Mars have?
It has 2 small moons.
Is Venus the closest to the sun, or the hottest in the solar system?
It is the hottest planet.
Is a day on Mars longer or shorter than a day on Earth?
A bit longer by 24 hours and 37 mins.
Does Venus rotate the same was as Earth, or does it spin backwards?
It spins backward and slowly.
Is gravity on Mars stronger or weaker than on Earth?
It is a bit weaker about 38% of Earth's gravity.
How many moons does Venus have?
Zero
What is the biggest volcano found on Mars?
Olympus Mona