'(<a href="http://www.j-archive.com/media/2007-03-14_J_28.jpg" target="_blank">Cheryl of the Clue Crew demonstrates a scientific instrument</a>.)  <a href="http://www.j-archive.com/media/2007-03-14_J_28a.jpg" target="_blank">This</a> device for measuring the density of liquids takes its name from the Greek for "water measure"'
hydrometer
A DATE WITH DENSITY: This device for measuring the density of liquids takes its name from the Greek for water measure
This device for measuring the density of liquids takes its name from the Greek for "water measure"
This device for measuring the density of liquids takes its name from the Greek for "water measure"
A DATE WITH DENSITY
hydrometer
A DATE WITH DENSITY