Investigating sound

We have been doing lots of investigations over the last couple of weeks about how a sound is made and how it can be changed. 
Here are a few of the things we found out.


Emma explained 2 ways in which sound can be made:

Leonna found out that sounds are made when something vibrates:

Jihyun applied what she had found in the rubber band investigation to plan her own musical instrument. She knows that to change the pitch you need to change the thickness or the length of the string. How tight or loose the string is also affects how high or low the note is.

In the next part of our topic, we will be making our own musical instruments and writing instructions for how to make them. Maybe you can make our instruments following the instructions we write!