Session 7 - Laboratory Work, collecting and testing evidence

Mystery at Merchant Taylors'

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Session 7 - Laboratory Work, collecting and testing evidence

The girls took their fingerprints and identified which type they are, they tested soil from the suspects' shoes and tested them using a flame test, they were then able to eliminate one of the suspects' from their enquiries. The next stage was tinkle testing, samples of urine had been collected and the girls tested for protein and glucose and found out the pH level. (Don't worry, the urine wasn't real!)

Finally the girls compared the results from Mrs Robinson's fountain pen with that of the suspects' pens and deduced that Tilly Type was the villain.

Well done girls, Mrs Robinson will be delighted that you solved the mystery at Merchant Taylors'



























































Posted using BlogPress from my iPad

Session 7 - Laboratory Work, collecting and testing evidence

The crime
Mrs Robinson has lost her gold fountain pen. It has been handed down through generations of her family and was given to her on her first day as headmistress of the school. She thinks she may have left it in the ladies' powder room.

The Clues
Fingerprints left in the powder room
Soil samples on the suspects' shoes
Urine samples from the toilet
Ink samples from the suspects' pens

The Suspects
Ben Bentley the bus driver
Susie Sweep the cleaner
Ruby Rose the gardener
Tilly Type the secretary

The girls had to investigate various clues and evidence to work out who took the Pen.


























































































Posted by A.Crichton