Science Teaser #27
You have two identical party balloons. You blow one up 80 percent full and another you blow up 40 percent full. Now you attach the two balloons together at the mouth so that the air can flow between the two balloons. What will happen?
Nothing will happen.
The balloons will equalize so they are the same size.
The small balloon will give all its air to the large balloon.
The large balloon will give all its air to the small balloon.
Don't worry if you didn't take a lot of science classes in school — these teasers aren't nearly as difficult as your midterms. Many of these teasers are based on a single principle or fact that you probably remember from physics or chemistry classes.