# Online Density Lab

```Name:(put your name here)
Online Density Lab
Mix and Flow of Matter – Topic 5
Save this file into your folder as Topic 5 – Internet Density Lab.
1.
2.
3.
4.
Go to http://www.learnalberta.ca/content/ses8/index.html?launch=true
Click on the “Login as an Authorized User” button.
Click on the “Mix and Flow of Matter” folder on the left of the screen.
Select the “Density Lab” gizmo (not “Density Laboratory”) from the list
on the right of the screen.
NEATLY complete the following table and questions.
Description
Mass
( )
Volume
( )
Density
(
)
Write the
correct units
for mass
here.
Write the
correct units
for volume
here.
Write the
correct units
for density
here.
Does
it
Float?
Y or N
Rank
(from
most to
least
dense)
Blue Square
Blue Triangle
Red Square
Red Oval
Pink Square
Purple Oval
Green Triangle
Grey Triangle
Tan Rectangle
Black/Red
Rectangle
a) What is the density of the liquid in the pail?
Questions:
1) Do you notice any correlation (Pattern) between the density of an object and
the ability of the object to sink or float? (Explain)
2) Which object has the greatest volume?
3) Which object has the least volume?
4) Which object has the greatest mass?
5) Which object has the least mass?
6) Which object has the greatest density?
7) Which object has the least density?
8) Which objects would sink if the density of the liquid was changed to 10g/ml?
PART II
Click “Back” on the website and go back to the list of Gizmos selected by you
teacher. Find the “Density Experiment: Slice and Dice” Gizmo – it is the last one
in the list.. Click on “Launch Gizmo.”
Fill in the following table.
Name of
Material
Styrofoam
aluminum
wood
state
Unknown A
Unknown B
Mass
(grams)
Volume
(cubic cm)
Sink/Float
(as whole)
Sink/Float
(in pieces)
Answers must be in bold font.
1. In your textbook, find the formula for density.
2. From your experiment, if the mass is greater than the volume of an object,
does that object sink or float?
3. From your experiment, if the volume is greater then the mass of an object,
does that object sink or float?
4. What is the density of the water in the gizmo?
5. For something to float, does it’s density have to be more or less than that
of water?
Part II
1.
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5.
Highlight the final column of your table.
Go to Table &gt; Insert &gt; Columns to the Right
Title the new column “Density”
Underneath “Density”, insert “g/cm3”
Using the formula from question number one, calculate the density of each
material (to the nearest tenth if necessary).