Test Density
What You'll Need
The Materials
  • a pitcher
  • a long spoon
  • 3 drinking glasses (all the same size)
  • warm water
  • table salt
  • a spoon
  • blue and red food coloring
  • 2 identical soda bottles with a regular neck (not wide)
  • an unsharpened pencil
  • a funnel (that fits inside the top of the soda bottle)
  • a ruler

What You'll Need