Identify the medium in each example below .
1.when a pebble is thrown in a pond ,water waves form .
2. Sound waves travel through the air from a speaker to your ear .
3. When you move your hand up and down while holding a jump rope ,you make a wave .
![Identify the medium in each example below 1when a pebble is thrown in a pond water waves form 2 Sound waves travel through the air from a speaker to your ear 3 class=](https://us-static.z-dn.net/files/dfd/10af66373114bd81197a5171ddb2ca66.png)