jueves, 2 de junio de 2016

Experiment - are these drinks corrosive?

We've done an experiment to find out if some drinks are corrosive.
Our hypothesis was that coke, orange and milk were corrosive and water wasn't.

We put some dirty coins in the drinks.

We waited for some days and we were right, the coins are cleaner now.
Coke and orange were corrosive but not milk!