Is Mars bigger or smaller than Earth?
Smaller
Which planet is closer to the sun--Mars or Earth?
Earth
True or false: Astronauts have landed on Mars.
False
True or False: There is running water on Mars.
False
True or false: There are clouds on Mars.
True
True or false: There is drinking water on Mars.
False
When did Mars last have oceans?
2 billion years ago
4 billion years ago
yesterday
1 million years ago
How long would your food and water need to last you on Mars?
10 years
a month
a year
For the rest of your life