UBSE - 8 - Science :: Sound

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Course content
Textbook
Teaching learning resources

Course Content / Subtopic list:

Sound is Produced by a Vibrating Body
Sound Produced by Humans
Sound Needs a Medium for Propagation
We Hear Sound through Our Ears
Amplitude, Time Period and Frequency of a Vibration
Audible and Inaudible Sounds
Noise and Music
Noise Pollution

[Contributor - Rini Jose]

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Lesson Plan

Dear Volunteer Teacher,

The lesson plan provides an overall picture of what you need to teach. It is recommended that you follow the objectives and the learning outcomes stated in the lesson plan.

We suggest that that you read the chapter thoroughly and research on how to teach the topic effectively to meet the learning outcomes.

Kindly note, while the lesson plan is a guide to teach, you can also add your own teaching elements to enhance the learning process of the children.

Sound Lesson Plan - (Lesson Plan - English)

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If you feel any major modifications or additions are carried out by you in the form of adding any new activity, presentations, videos etc. we request you to send the modified version to submitcontent@evidyloka.org for enabling upload of the modified version.

The worksheets of the lesson can be accessed from the worksheet tab.

Videos

[Author - Kripa S]

https://www.youtube.com/watch?v=p4FQYTfXuFU ( Sound requires a medium )

https://www.youtube.com/watch?v=sHTXhz6xUmA (Sound - Hindi)

Images

[Author - Anu Nived]

http://i229.photobucket.com/albums/ee78/indianraga/pic/jaltarang-milind-tulankar-500x346.jpg (variation in sound - Jal tarang)

http://www.ekshiksha.org.in/sound_VIII/figure_13.JPG (propagation of sounds in solids)

http://www.ekshiksha.org.in/sound_VIII/figure_11.JPG (propagation of sound in liquids)

https://s-media-cache-ak0.pinimg.com/736x/d1/09/04/d109049b8cd95b32bc1a852c24714085.jpg (Structure of an ear)

Activities

[Author - Arshea Bimal, Kripa S]

1. https://www.youtube.com/watch?v=BoSh_ei7KoI (Straw flute)

2. Make a list of sounds you hear in your surroundings.

3. Take a rubber band. Put it around the longer side of a pencil box. Insert two pencils between the box and the stretched rubber. Now, pluck the rubber band somewhere in the middle. Do you hear any sound? Does the band vibrate?

3. Take a metal dish. Pour water in it. Strike it at its edge by a spoon. Do you hear a sound? Again strike the plate and then touch it. Can you feel the dish vibrating? Strike the dish again. Look at the surface of water. Do you see any waves there? Now hold the dish. What change do you observe on the surface of water? Can you explain the change? Is there a hint to connect sound with the vibrations of a body?

4. https://www.youtube.com/watch?v=p64BlQfZsTk (roaring bottle)