Quiz · Searching for Life on Mars

Question 1What is the main purpose of this talk?

To describe the long search for signs of life on Mars To present plans for building cities on Mars To explain how dust storms form on the planet To compare the weather on Mars and on Earth

Question 2What do the robot rovers do on the surface of Mars?

They plant trees and grow crops They dig deep into the ground for gold They drill into rocks and test the soil for ancient chemistry They build landing pads for future spacecraft

Question 3Why do scientists search so hard for signs of liquid water on Mars?

Because where there is water, tiny organisms might once have lived Because water could be sold back on Earth Because water proves that Mars is warm today Because water would make the soil turn red