Imagine you are returning to the base ship on the sunlit side of the moon after carrying out a 72-hour exploration trip. Your small spacecraft has crash-landed about 200 miles from the base ship. You need to reach the base ship, in addition to your spacesuit, you were able to salvage the items listed below. Using what you know about the moon, rate each item in the above list according to how important it would be in getting you back to the base ship.

Drag the items below up and down to prioritize them in the list, from most important to least important.

MOST IMPORTANT (drag Items up and down to move) LEAST IMPORTANT

Once you have the above items prioritized from most important to least important (from top to bottom), click the button below to see your score and compare with NASA's answers.