We all like different music from each other. So what about cows? Scientists studied this a few years ago by playing music for cows, to see if the cows made more milk during certain songs. They found that when listening to songs with fewer than 100 beats a minute, the cows gave 3% more milk. That means that in the time the farmers normally got 100 cups from them, they now got an extra 3 cups. Even after discovering this, we still don’t know why this happens — or more importantly, whether the milk and butter taste any better.

*Wee ones:* If there were 6 cows and 9 people playing music, were there more people or cows in the barn?

*Little kids:* There were 6 songs the cows liked best, all by different singers. If one was by Aretha Franklin, how many other singers made the list with her? *Bonus:* If your list of favorite songs has 10 more songs than that, how many favorite songs do you have?

*Big kids:* If 60 cows listened to the music and 1/2 of them made more milk, for how many cows did the test work? *Bonus:* If you normally jump 2 feet off the ground, but can jump 17 inches higher than that when you hear your favorite song, how high can you jump now? (Reminder: A foot has 12 inches.)

Answers:

*Wee ones:* More women than cows.

*Little kids:* 5 other cow singers. Bonus: 16 songs.

*Big kids:* 30 cows. Bonus: 41 inches, since you normally jump 24 inches.