Vidya went to her hradfather Rajam's house to spend her summer vacation. Rajaram has coconut fields near him house. It the evening she went to the coconut field along with her grandfather. There the workers offerd her coconut water. Her grandfather told worker to provide a straw to facilitate drinking the coconut water comfortably. Can you explain the principle behind using straw for above purpose ?

Explanation

When we suck one end of a straw dipped into the coconut water, some air from inside the straw is drawn out. A partial vacuum is created within the straw and as a result coconut water is pushed up by the atmospheric pressure to fill up the vacuum and reaches the persons mouth. Hence, we can drink the coconut water.