How to make sound in Little Alchemy

To make sound in Little Alchemy you have to combine this elements:

1. air + wave

Sound Step by Step

How do I combine the necessary elements to create sound in Little Alchemy?
Here we show you the walkthrough, just follow the steps below:

1 water + water = sea

2 air + air = pressure

3 air + pressure = wind

4 sea + wind = wave

5 air + wave = sound

Below you can see a video tutorial on how to make sound in Little Alchemy:

Combinations with other elements are not yet known.