Download - SAS Curriculum - Density #11
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A substance’s density is the measure of the mass of material within a certain volume. (amnt of space taken up)
The mass (amnt of particles) is affected by how tightly packed the molecules are within the space.
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A B
A and B = SAME VOLUME (same size)
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A B
A and B = SAME VOLUME (same size)
A B
A and B = DIFFERENT MASS (amount of particles; different substance)
Different Densities
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C D
C and D = DIFFERENT VOLUME (different size) but same substance
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C D
C and D = DIFFERENT VOLUME (different size) but same substance
Same Densities-
particles are packed the
same way
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1. Go to: Learning Point
2. Select: Feb. 27th – Mar. 2nd
3. Select: SAS Curriculum #11 hyperlink
4. Type in: eagles
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Object # Mass(g)
Initial Volume
(mL)
Final Volume
(mL)
Object Volume
(mL) 1
5
2
5
3
5
4
5
Table 1: Data for objects 1-4
Subtract Final Volume from Initial
Volume
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Subtract Final from Initial
Object #
Mass (g)
Initial Volum
e (mL)
Final Volume
(mL)
Object
Volume
(mL)
Density(g/mL)
RESULTS(S= sink; F=floats)
Water Ethano
Gasoline
Sea H2O
5
6
7
8
9
10
11
Table 2: Data for Objects 5-11
Divide Mass by Object Volume
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Subtract Final from Initial
Substance Density(g/mL)
aluminum 2.7copper 8.9
gasoline 0.68gold 19.3ice 0.917iron 7.8lead 11.3
seawater 1.025wood (average value) 0.8
Table of Densities
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Subtract Final from Initial
Liquid Color of
Liquid
Volume (mL)
Mass (g) Density (g/mL)
1.Water Light Blue
5
2. Ethanol Dark Blue
5
3. Gasoline
Dark Green
5
4. Seawater
Light Green
5
Table 3: Liquid Densities
Mass divided by Volume = Density
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1. Introduction to Density Due today sometime.
2. Have an enjoyable weekend!