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Density Tower

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maleha esha

on 11 May 2016

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Transcript of Density Tower

Density Tower
Variables
independent variable- different kinds of liquids
dependent variable- the layers of liquids with different densities
control/constant- the amount of liquid in each of the layers that formed in the vase
Results/Observations
None of the liquids mixed in with each other. However, I did notice a little bit of the maple syrup bleed into the honey. Liquids with higher densities will sink below liquids with lower densities. The liquid at the bottom of the glass which is honey has the highest density and the liquid all the way at the top which is oil has the lowest density.
Question
Purpose
The purpose of this experiment is to unravel why density allows different liquids to not mix.
Materials
· A large glass vase
· Honey
· 100% maple syrup
· Whole milk
· Dish soap
· Water
· Vegetable or canola oil
· 9 cups
· A turkey baster
· Food coloring
Procedure
1)Measure out equal amounts of each liquid into the cups
2)Use food coloring to color the water
3)Carefully layer honey, then 100% maple syrup in the vase (don’t let it touch the sides while pouring)
4)Use the turkey baster to layer the rest of the liquids in the vase (go slow, be careful)
5)Starting with the water now, pour the liquids down the side
Hypothesis
What allows density to take place in a glass vase full of different types of liquids?
If I place 6 different liquids in a large vase, then the liquids will not mix because each of the liquids have different measurements of density
Images
In this picture, you can see how a little bit of the honey mix with the maple syrup
These pictures show all the materials needed for this experiment
This is a close up of all of the liquids layered. You can also see how a little bit of the dish washing soap bled into the milk
This is the dyed water
Close up of the liquids in the glass
Top of the glass. this is the water and you can see a little oil in the water

Density = Mass divided by Volume. Based on this equation, if the weight (or mass) of something increases but the volume stays the same, the density has to go up. Likewise, if the mass decreases but the volume stays the same, the density has to go down. The density of a liquid is determined by how many molecules of a substance fit into a set volume. Water molecules have a specific size and like to stay a specific distance away from each other. If an 8 ounce cup of a different liquid has more molecules or if the molecules are larger, then it will have a higher density than water and if the liquid has less molecules or those molecules are smaller, then it will have a lower density than water. A liquid that has larger molecules that are closer together will have more mass.
Research
Reference
http://www.middleschoolchemistry.com/lessonplans/chapter3/lesson1

http://physics.about.com/od/fluidmechanics/f/density.htm

http://www.stevespanglerscience.com/lab/experiments/density-tower-magic-with-science

Conclusion
Although I saw some bleeding of the liquids in between one another, my hypothesis was correct, if I place 6 different liquids in a large glass vase then the liquids will not mix because each of the liquids have a different density.
Maleha Esha
Class 707

Fun Fact
Did you know that if you fill a medium-sized jar with 1 and 1/2 cups of water, and then add 1 cup of oil, The water sinks to the bottom of the jar and the oil floats on top of the water. This proves that oil is less dense.
Full transcript