A rhythm is a regular repeated pattern of beats or sounds. This can be produced by any instrument. Pop music often contains simple rhythms from guitars or drums. The sounds you hear here all contain examples of different rhythms. They might be musical rhythms or rhythms from nature.
Listen carefully to the sounds and try to work out what has created the sound.
Describe the repeating pattern?
How can you write this on paper?
Describe how the rhythm is being produced.