By Cindy Murphy,2014-03-07 17:10
Key for Student Worksheet for
Living in Space - Designing a Space Station
1. What are the four basic requirements to make a space station habitable?
A space station needs air, water, food and power. A toilet also comes in handy.
2. What do astronauts bring into space to breathe? Why is this the best choice?
The best choice is a nitrogen-oxygen mix (79% nitrogen, 21% oxyge..