How To Make A Cup Telephone - Simple Home Experiment For Kids

Image Credit: Kids doing science experiments at Kiddo Science, Puchong

This home science experiment post was contributed by Kiddo Science, Puchong who is currently featured on our website.

Here's how to make a cup telephone

Things you will need:

• 2 paper cups
• 1 long string (3 meter)

How To Make A Telephone Using 2 Paper Cups And 1 Long String

1. Prepare the materials needed
2. Connect the two cups with a piece of string.
3. With your friend talking from one end, try to hear from the other end of the cup telephone 
4. Jot down your observation.

Purpose And Benefit Of This Simple Science Experiment For Kids

• It is fun, an experiment we used to do or play when we were young
• Kids will learn that sound can produce vibration
• This experiment shows that sound travels through the string
• Life application: In today’s technology, voice travels through cables or wires like house phones

At Kiddo Science, Puchong, children are required to take note of their observation after the experiment.

For example, which cup telephone will produce the clearest sound?

Image Credit: Cup and String Telephone Observation Sheet From Kiddo Science, Puchong

-         Kids will learn that the tension of the string affects the quality of the outcome.

You can try this simple science experiment at home too. It is simple, fun and easy while allowing kids to learn science concepts and its life applications.