Experiment-senses

 Why doesn't food taste as good when you have a cold?

Here was a simple experiment we did to find this out!

Blindfold your student.  Then prepare two drinks with straws in them.  Hold your nose while you  take a small drink from each of them.  Could he tell which was which?

He could barely tell the difference.  Even though they were two different flavors of juice.  Your tongue can only tell they are both sweet.  It can not tell them apart.

 Then he took a drink of each of them without plugging his nose!  Now he could tell the difference!