Science 7 – 10/6/2015
Name___________________________
Per____
Density Column Experiment
Question: How does density affect the separation of matter?
Hypothesis: (circle one)
a. Denser matter rises above less dense matter.
b. Density has no effect on the separation of matter.
c. Denser matter sinks below less dense matter.
d. Other:______________________________________
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Experiment:
Materials
Procedure
1 graduated cylinder
1 scale
1 turkey baster/dispenser
1 cylindrical glass container
Liquids (40 mL of each):
-Lamp oil
-Rubbing alcohol
-Vegetable oil
-Water
-Dawn dish soap
-1% milk
-100% amber maple syrup
-Light corn syrup
-Honey
Solids:
-Ping pong ball
-Soda cap
-Cherry tomato
-Popcorn kernels
-Die
-Bolt
1. Find the mass of the graduated cylinder.
2. Pour 40 mL of a liquid into the cylinder and find the mass
of the cylinder with the liquid.
3. Subtract the mass of the cylinder from the mass of
the cylinder with the liquid to find the mass of just the liquid.
4. Divide the mass of the liquid by its volume (40mL) to find
its density. Reduce to find its density per milliliter.
5. Wash and dry the graduated cylinder.
6. Repeat steps 2-5 for all other liquids.
7. Find the mass of a solid object.
8. Pour 40 ml of water into the cylinder.
9. Drop the solid object into the cylinder and note how much
the water level rises. This change in water level is the volume
of the object. (If the solid object floats in water its volume will
have to be found though other means)
10. Divide the mass of the object by its volume to find its
density. Reduce to find the object’s density per milliliter.
11. Repeat steps 7-10 for all other solids.
12. Number the liquid and solid objects according to their
density.
13. Using the turkey baster, insert 40 mL of each liquid
into the cylindrical glass container. Insert the liquids in
order from greatest to least density.
14. Drop in the solid objects.
15. Draw a diagram showing how the layers and
objects separated.
Lamp oil: 0.8g/mL
---------------------------------------------------------------------------------------------------------------------------------------------------------------Rubbing alcohol: 0.87 g/mL
---------------------------------------------------------------------------------------------------------------------------------------------------------------Vegetable oil:
_____________________________g − _____________g =__________________g
(mass of vegetable oil and cylinder) (mass of cylinder) (mass of vegetable oil)
Density Column Diagram
(mass of vegetable oil)
______g = ______g
(volume of vegetable oil)
40 mL
mL
------------------------------------------------------------------------------------------------------Water:
______________________ _g − _____________g =_____________g
(mass of water and cylinder) (mass of cylinder) (mass of water)
(mass of water)
______g = ______g
(volume of water)
40 mL
mL
------------------------------------------------------------------------------------------------------Dawn dish soap:
__________________________g − _____________g =_______________g
(mass of dish soap and cylinder) (mass of cylinder) (mass of dish soap)
(mass of dish soap)
______g = ______g
(volume of dish soap)
40 mL
mL
---------------------------------------------------------------------------------------------------------------------------------------------------------------1% milk:
______________________g − _____________g =___________g
(mass of milk and cylinder) (mass of cylinder) (mass of milk)
(mass of milk)
______g = ______g
(volume of milk)
40 mL
mL
------------------------------------------------------------------------------------------------------100% amber maple syrup:
_____________________________g − _____________g =_________________g
(mass of maple syrup and cylinder) (mass of cylinder) (mass of maple syrup)
(mass of maple syrup)
______g = ______g
(volume of maple syrup)
40 mL
mL
---------------------------------------------------------------------------------------------------------------------------------------------------------------Light corn syrup:
___________________________g − _____________g =_______________g
(mass of corn syrup and cylinder) (mass of cylinder) (mass of corn syrup)
(mass of corn syrup)
______g = ______g
(volume of corn syrup)
40 mL
mL
---------------------------------------------------------------------------------------------------------------------------------------------------------------Honey:
________________________g − _____________g =_____________g
(mass of honey and cylinder)
(mass of cylinder) (mass of honey)
(mass of honey)
______g = ______g
(volume of honey)
40 mL
mL
----------------------------------------------------------------------------------------------------------------------------------------------------------------
Data Analysis:
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Conclusion:
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Vegetable oil
____________g
mL
Water
____________g
mL
Dawn dish soap
____________g
mL
1% milk
____________g
mL
100% amber maple syrup
____________g
mL
Light corn syrup
____________g
mL
Honey
____________g
mL
Densities (in g/ml)
Liquids:
-Lamp oil (0.8)
-Rubbing alcohol (0.87)
-Vegetable oil (0.91)
-Water (1.0)
-Dawn dish soap (1.03)
-1% milk (1.04)
-100% amber maple syrup (1.3)
-Light corn syrup (1.35)
-Honey (1.42)
Solids:
-Ping pong ball (0.08)
-Soda cap (0.91)
-Cherry tomato (1.01)
-Popcorn kernels (1.3)
-Die (1.3)
-Bolt (7.6)