Activity 2: Sound can be bundled

Category: AV-media (sound)

Target Group: 3 to 6 year old children in nursery school

aims: The children realize that sound waves are transmitted for example through the bundled air in the cardboard tube and in funnels or through a piece of string and are thrown back by hard surfaces.

Where? the group’s room

How long? approx. 45 minutes

What? experiments examining sound

Preparation

Materials:

cardboard tubes, pieces of string, spoons, tubes, funnels, yoghurt cups or tin cans, thin thread, clocks, plates, books

Steps:

Papprollen bündeln den Schall

 

Teller reflektiert den Schall

"Telefonieren" mit dem Schlauch

Faden leitet den Schall

Ein Dosentelefon wird gebastelt

Telefonieren mit dem Dosentelefon

Scientific Explanation:

Free Experimenting 1

A cardboard tube bundles the air. Sounds grow louder.

Demonstration 1 Sound waves are reflected by hard surfaces (plate) and travel to the ear through the second tube.

Free Experimenting 2

The air bundled in the tube transmits sound. A telephone works in a similar way.

Demonstration 2

Sounds is being transmitted into the ear by the string.

Attention!

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Source: Ardley, Neil und Burnie, David: Spannende Experimente aus Natur und Technik. Bindlach 1998

 

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