1. Review for Quiz

2. What is the ECLSS located?

3. What happens if the ECLSS cycle is unsuccessful?

4. What is the characteristics of an acid?

5. Engineering Design Process? (5 steps)

6. What is the net mass that is being reduced?

7. What is a characteristic of a base?

8. What color are acids on the pH scale?

9. What is the number on the pH scale for neutral?

10. What is the number on the pH scale for bases?

12. What 3 things does the ECLSS regulate?

13. What color is a base on the pH scale?

14. What is it called when water turns into oxygen and hydrogen (separately)?

16. What is the number on the pH scale for acids?

18. What is the percentage of oxygen and nitrogen on the Earth and International Space Station?