Sound Pitch - Funny Videos

     What is high pitch and low pitch? 
Learn how voice can change with time.
What happens to the sound waves of high pitch and low pitch?

See or download the lesson materials from Google Drive
https://drive.google.com/drive/folders/1HKRt56kONIoOfBmuXVlt1uKhH__jMZhA?usp=sharing

See or download the lesson materials from Google Drive
https://drive.google.com/drive/folders/1HKRt56kONIoOfBmuXVlt1uKhH__jMZhA?usp=sharing