What makes scientists think that there may have been life on Mars?
Evidence of water
Evidence of fire
Evidence of technology

	Why do scientists think there was liquid water on Mars?
Circling satellites found ice on Mars
The surface of Mars appears to have been shaped by flowing water
Mars may have been warmer and wetter

	Do you think we should look for life on Mars?
Yes. How cool is that?
No way! Even if there is, what right do we have to disturb?
Not sure

	If we find evidence of life on Mars, what will it look like?
Us
Big and bizarre - like in the movies
Microscopic

	Should we send people to explore Mars?
Yes - let’s create a Mars base
No - let our unmanned probes continue to do our work
Not sure or don’t care