Chapter 6 Quiz

Indicate whether the sentence or statement is true or false.


There are some sounds humans cannot hear.


Our ears can detect sound vibrations.


Grasshoppers have “eardrums” on their front legs to listen to sound.


A quick back-and-forth motion is called a vibration.


Sound travels along the ear canal to reach the little bones in the middle ear and then vibrates liquid in the inner ear.

Complete the Sentences
Use the following words to complete the sentences.
          energy      vibrations      shells     


Sound ____________________  can cause things to move.



We can push the ____________________ of our ears forward to hear sounds more easily.



Sound is a form of ____________________.


Answer the Question
Use sentences to answer the question.


Why is sound important to humans and other animals?

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