How Do We Hear?

 

a WebQuest about Sound  for 2nd grade students

by Megan Poole

Introduction | Task | Resources | Process | Evaluation |


Introduction

Sound is everywhere.  It helps us to make sense of the world, but how do we hear?  What happens in our ear to help us to hear sound? Let’s explore  sound.

The Task

 

To find out how the human ear detects sound.  Students will label the parts of the ear and describe what they have learned about sound in a paragraph.

 


Resources

 

Sound and movement

diagram of ear.kid

http://www.bbc.co.uk/schools/revisewise/science/physical/15_act.shtml


The Process

1.      Let’s explore sound by watching this video.  Listen carefully to discover how    

      our ear “hears”  sound.

2.   Open up this kidspiration document.  diagram of ear.kid   Write a paragraph

      about how sound travels through the ear.  Write your name on the paper and

      make sure you have checked your paragraph for punctuation and spelling

      BEFORE printing it out.  After it is printed label your “ear”.

3.      When you have completed the ear diagram go to: http://www.bbc.co.uk/schools/revisewise/science/physical/15_act.shtml

Be sure you complete the activity, fact sheet and test.

 

 

 

 

Evaluation

 

 

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Score

Diagram of ear

– The student draws an ear with missing parts, and is unable to label the parts of the ear, or explain how sound is detected through vibrations moving through the ear to send a message to the brain so sound is detected.

The student correctly draws and labels the ear (ear canal and ear drum) and the brain and states that the ear drum hears but does not give a detailed account of how sound is detected through vibrations of the ear drum sending a message to the brain.

The student correctly draws and labels the ear ear canal and ear drum) and brain and explains that vibrating sound waves enter the ear canal, the vibrations cause the ear drum to vibrate back and forth , and send a message to the brain so that sound is detected.

The student correctly draws and labels the ear ear canal and ear drum) and brain and explains that vibrating sound waves enter the ear canal, the vibrations cause the ear drum to vibrate back and forth , and send a message to the brain so that sound is detected.