At school a few weeks ago

A few weeks ago at school, my class and I were doing this test on salt and water. So we had a tuning fork and plastic wrapper, and a yogourt container, so we placed the salt on the plastic wrapper witch was wrapped by an alastic band. So we hit the tuning fork on our soul of our shoes and it started to vibrate. So we careful lifted it up above the salt and it moved the salt. Then we try water but it do not work. Thank you for checking out this entry.