Question 1: Estimate the mass of food and water that a team of six astronauts would need for a standard two-year mission to Mars. (Note: the two years includes the round trip.)
Question 2: Estimate how long it would take to drive from Los Angeles to New York City.
Question 3: Estimate the number of apples produced per year by a mature honey crisp apple tree.
If in 1985 someone was asked to define the word
If in 1985 someone was asked to define the word sexting, he or she probably would be at a loss for words since that concept