Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS
SAF Archives  search ask the scientists in the classroom cool science

Guide Index

Out of Thin Air

NASA's Way to Mars

Why Go to Mars?

We're on Our Way

Houston, We've Had a Problem!

Getting There

Viewer Challenge
in the classroom
TEACHING GUIDES


Journey to Mars: Viewer Challenge Quiz


Watch Scientific American Frontiers Show 902: Journey to Mars, and test your knowledge by answering these questions:

OUT OF THIN AIR

1. Robert Zubrin shows how to make fuel on Mars for the return trip to Earth using the main component in the Martian atmosphere, namely:
a. hydrogen.
b. carbon dioxide.
c. carbon monoxide.
d. oxygen.
2. Zubrin believes we should apply what basic rule to Martian exploration?

NASA'S WAY TO MARS

3. How long would it take (in NASA's current mission scenario) to travel from Earth to Mars?
a. 6 months.
b. 18 months.
c. 2 years.
d. 26 months.
4. In the inflatable habitat, the layers of fabric form a shield that protects the spacecraft from what?

WHY GO TO MARS?

5. Scientists now believe Mars was once:
a. even colder than it is today.
b. all a desert.
c. covered with dry ice.
d. warm and wet.
6. The rock or meteorite that broke off from Mars 16 million years ago may contain evidence of what?

WE'RE ON OUR WAY

7. Name two effects weightlessness during space travel has on the human body.

WE'RE ON OUR WAY

8. What technology could help astronauts make repairs while in space or on Mars?

GETTING THERE

9. Why do Alan Alda's arms feel heavier when he's in the human centrifuge?

10. Slow adaptation to changing gravity makes this one of the most dangerous times for astronauts:
a. takeoff.
b. landing
c. mid-flight.
d. two days after landing.


I WANT TO SEE THE ANSWERS TO THE
JOURNEY TO MARS VIEWER CHALLENGE





 

Scientific American Frontiers
Fall 1990 to Spring 2000
Sponsored by GTE Corporation,
now a part of Verizon Communications Inc.