This is a good quiz and because of the lack of overlap it would be better as a regular quiz, rather than a time challenge. You could have both, which would be good.
What a challenge, took me four tries. I could only do it if I was already looking at / thinking of the next row while typing the last row...if I just waited until I was done typing each one to confirm I didn't mistype, I couldn't make it.
Made me realize I have a habit of always checking the answer bar after I type anything because so many of the quizzes accept short or partial answers and if you aren't looking you end up typing multiple answers in a row and have to go back and delete them because it accepted an answer before you finished typing it, etc.
Why is it that some quizzes allow you to scroll down a little to show the field of subjects (such as states in this one) before starting, without shifting back up, as this quiz does? Some quizzes don't do this shift, and it makes all the difference in quizzes with so little time. Maybe it doesn't make a difference with tablets, but switching from keyboard to screen navigation is really obnoxious.
Made me realize I have a habit of always checking the answer bar after I type anything because so many of the quizzes accept short or partial answers and if you aren't looking you end up typing multiple answers in a row and have to go back and delete them because it accepted an answer before you finished typing it, etc.