Density
Created by Erik Heinemann
As
we begin looking at the concept of density we will go through an interactive
Internet investigation. Go to the interactive
density site (URL http://ippex.pppl.gov/interactive/matter/density.html)
and read about density by going through the interactive site using the arrow
button in the lower right corner that looks like this:
Part I
Answer the following
questions before performing the interactive lab.
- Is density a chemical or physical property?
- In what unit is density measured?
- What is a mathematical equation for density?
- Do thinks more dense than water float or sink?
Part II
Once in the lab complete the
following chart. Make sure that the
density of water is set on 1.0 g/cc for the liquid in the pail. Measure the volume by placing items in the
graduated cylinder. Measure the mass of
objects by placing them on the balance.
|
Material |
Volume (mL) |
Mass (g) |
Density (g/mL) |
Float or sink |
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Pink rectangle (small) |
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Purple Oval (small) |
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Gold bar |
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Blue Square (large) |
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Purple triangle |
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Red oval (large) |
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Gray triangle |
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Red rectangle (large) |
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Green triangle |
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5. Adjust the density of the pail to 2.0
g/cc. List the materials that will now
sink in the pail.