INTRODUCTION Before MP3 players and CDs, sound was recorded on records made from vinyl plastic. Sound waves from music were converted into a wavy groove on the record’s surface. When the record was played, a needle or stylus moving in the groove picked up the sound as a signal that could be amplified. If you look carefully across the surface of an old vinyl record, you will see from the pattern of grooves how the sound changes. Loud sounds make more wavy grooves.

For this kit you will need the following:

Record
2 Sheets of card
Needle
Split Pin
Plastic Cap (Lid of 10ml Tube)
Sticky Tape
scissors
Coin (2 pence piece seems to be a good weight).

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