Density Lab Report Assignment Sheet
Lab report due Monday, February 1, in class. Late assignments will lose points. Help will be
available Thursday at lunch for those who need it.
1. Choose ONE of the two density labs that we did in class this week:
 Comparing Densities Lab 1 – cubes of different materials
 Comparing Densities Lab 2 – aluminum & PVC samples
2. Write up a lab report presenting your experiment, your results, and your analysis.
 Your lab may be typed or written neatly in pen. Fill in the blanks worksheets are available
for those who wish to use them.
 Make sure you make a title page if you type your project. Make sure you include your
heading if you write by hand. This should include a title that describes the project, your full
name, the date the project is due, your class, and the name of the class (Science).
 You may email projects to kvaughan@brooklynprospect.org by 8 pm Sunday night. Please
use Microsoft Word and send your lab as an attachment.
3. Your lab report should include the following sections, in this order:
 Title & heading information
 Question*
 Hypothesis*
 Materials*
 Procedure*
 Data*
 Drawings of the objects that floated (for lab 1 only)
 Line graph (for lab 2 only) – put volume on the x-axis and mass on the y-axis, include a key
 Analysis: Make sure you answer all four questions below for whichever lab you chose!
*These sections are in your notes!
4. Analysis Questions
Lab 1:
1) What was the answer to your experimental question? Explain, using your data as evidence.
2) Was your hypothesis correct or incorrect? What did you predict? What really happened?
3) The density of water is 1.0 g/cm3. Look at the densities of objects that FLOATED in water. Are
they more dense or less dense than water? What about objects that SANK in water? What
conclusion can you draw about floating and sinking?
4) What would you do differently to improve this experiment, if you did it again? OR What new
experiment would you want to do, relating to density?
Lab 2:
1) What was the answer to your experimental question? Explain, using your data as evidence.
2) Was your hypothesis correct or incorrect? What did you predict? What really happened?
3) For each material, does the size of a sample affect the density of the sample? Explain.
4) What would you do differently to improve this experiment, if you did it again? OR What new
experiment would you want to do, relating to density?