Contributed by: New York State Alternative Assessment in Science
Project (NYSED)
Task: At this station, you will be determining the density
of a sinker.
Materials:
 Spring scale or balance
 Graduated cylinder
 Beaker with water
 Sinker
 Calculator
Directions:
 Find the mass of the sinker. Include units in your answer.
 In the space below, describe the procedures you will use to
find the VOLUME of the sinker.
 Find the volume of the sinker. Include units in your answer.
 What is the density of the sinker? Round to the nearest tenth.
Include units in your answer.
Show your work in the space below using the formula:
Density = Mass/Volume
 Suppose you cut the bottom half off the sinker. What would
be the density of the upper half of the sinker? Explain your answer.
NYS Alternative Assessment in Science Project
NSF Grant #MDR9154506
Copyright, April 1996
The State University of New York
The State Education Department
Albany, New York 12234
