EasyScience
"I am a bag of acid that dissolves what you eat. I expand to hold a full meal and shrink when empty. I growl when I want attention. What am I?"
Answer
The Stomach
Explanation
The stomach contains hydrochloric acid strong enough to corrode some metals, which it uses to break down food. It can expand from about 75ml when empty to over 1 litre after a meal. The growling sound of a hungry stomach is caused by gas and fluid movement.
This is an easy riddle in the Science category — Riddles about physics, space, biology and the laws of the universe.
Tags:bodyscience
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