Science - Sound

P6M made string telephones and carried out a range of tests to find out which resources carried the sound most effectively.

We talked about investigations in Science, how they are carried out, the importance of a fair test and variables.

The things that the pupils changed/tested were:

• Material the cups were made of (plastic/paper),
• the length of the string,
• the type of string,
• how taut the string was,
• what happened if the string went around a corner,
• or what if the string had a knot in it.