Download Sweetest Lab Ever - Mr. Fichter`s Skydrive

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The “Sweetest” Lab EVER!
Diving deep into the Layers of the Earth…
Image 1. Six glasses of tap water
SECTION 1  PRE-LAB QUESTIONS
1. How does the amount of added sugar affect the overall density of the sugar water?
“As sugar is added to the water ...
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2. Which of the following BEST describes “density?”
a. Density is the amount of volume per unit mass
b. Density is the amount of mass per unit volume
c. Density is how much “stuff” is in a “space”
RED
_____g
ORANGE
_____g
YELLOW
_____g
GREEN
_____g
BLUE
_____g
VIOLET
_____g
Image 2. Six glasses of tap water with different food dye colors and amounts of sugar
3. What if all 6 colored sugar waters were poured
into the same container? What would happen? Using the
blank cylinder below, sketch an illustration that shows
how each color will be arranged with your CURRENT
understanding of each sugar water.
SECTION 2  COLLECTING DATA
Color
Added Sugar
(g)
Red
0g
Mass of Sugar
Water &
Beaker (g)
Mass of
Beaker (g)
Mass of Sugar
Water (g)
Volume of
Sugar Water
(mL)
250 mL
Orange
250 mL
Yellow
250 mL
Green
250 mL
Blue
250 mL
Violet
250 mL
Table 1. Density Data
SECTION 3  STATION ROTATION 1.0
Show work for determining mass of sugar water…
Red
Show work for determining the density…
Show work for determining mass of sugar water…
Orange
Show work for determining the density…
Yellow
Show work for determining mass of sugar water…
Show work for determining the density…
Density
(g/mL)
Show work for determining mass of sugar water…
Green
Show work for determining the density…
Blue
Show work for determining mass of sugar water…
Show work for determining the density…
Violet
Show work for determining mass of sugar water…
Show work for determining the density…
SECTION 4  STATION ROTATION 2.0
STEP 1: Using a straw arrange the different-colored sugar waters
together within the straw and observe!
STEP 2: Begin with the LEAST dense colored water and work
towards what you CALCULATED to be the DENSEST water.
STEP 3: As you place the straw in each water, be sure to secure
your finger on the end of the straw to ensure the water
remains inside the straw.
Image 3. Collecting water from each of
the six glasses in a clear plastic straw to
observe the effects of density
SECTION 5  CONCLUSION QUESTIONS
1. What if all 6 colored sugar waters were poured
into the same container? What would happen? Using the
blank cylinder below, sketch an illustration that shows
how each color will be arranged with your NEW
understanding of each sugar water.
2. Explain your logic for the previous question.
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3. Matching  The layers of the Earth’s interior are arranged based on several factors, one of which is
density. Which colored sugar water would BEST represent each layer of the Earth’s interior?
CRUST
INNER CORE
OUTER CORE
ASTHENOSPHERE
MANTLE
LITHOSPHERE
Inner Core _____
a. Orange Sugar Water
Outer Core _____
b. Violet Sugar Water
Mantle _____
c. Green Sugar Water
Asthenosphere _____
d. Blue Sugar Water
Lithosphere _____
e. Yellow Sugar Water
Crust _____
f. Red Sugar Water
4. View the illustration from the previous conclusion question. CIRCLE the layer surrounding the
illustration that is home to CONVECTION CURRENTS.
SECTION 6  BONUS QUESTION
1. Explain the science behind being able to suspend water inside of a straw when capping one end of the
straw with your thumb.
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