SCIENCE FAIR 2021
Density column
12/12/2021
Date:
Name:
Arppana Kantharupan
Bavanuja Kugachanthiran
Aim
Hypothesis
Aim - The aim of this experiment
is to stack different liquids to
visually demonstrate how can an
object sink or float
From a list of solutions, predict
which arrangement will have the
highest density and which
arrangement will have the lowest
density - the less dense liquid
floats on top of the more dense
liquid)
What is Density Coloumn?
A density column is a holder of fluids stacked in layers. The layers stay
separate on the grounds that every substance has an alternate density from
the others. All in all, weighty fluids have more mass or matter per unit of
volume than lighter liquids.
How is a density column used to determine density?
Density = Mass divided by Volume. In light of this situation, if the weight
(or mass) of something increments however the volume remains
something similar, the density needs to go up. Moreover, if the mass
reduces, yet the volume remains something similar, the density needs to
go down.
How does the density column work?
The first layer you pour stays at the lower part of the glass since it has the most elevated
thickness or measure of mass per unit volume. The last layer you pour has the most
reduced thickness. A few fluids, similar to oil and water, don't blend since they repulse
one another. Different fluids, similar to honey and maple syrup, don't promptly blend since
they have distinctive consistency levels (thickness or capacity to stream). Be that as it
may, after some time, a few fluids in the segment will combine as one.
Risk Assesment
Spilling the liquid solutions, this may cause skin or eye irritation - wear safety
glasses and gloves to protect
Students ought not ingest any of the investigation
There are no particular security risks related with any of the synthetic
compounds utilized in this test
Emergency treatment – wash the impacted region with water. Standard consume
emergency treatment ought to be kept
Materials &
Ingredients
Honey (from the
bottom of the
cylinder)
Maple syrup
Dish soap
Water (coloured)
Oil (add 2 drops of
colour)
Nail polish
remover (this is to
the top of the
cylinder)
Variables
Independent variable different kind of liquids
Dependent variable - the
layers of the liquids with
different density
Constant variable - the amount
of each liquids that is formed in
a cylinder
Procedure
Set up your liquids. Use food shading to color fluids, whenever wanted. It's
useful to arrange liquids all together before you start. You will pour from
the first spot on the list (generally dense) and work your direction to the
lower part of the rundown (least dense).
Carefully empty the initial liquid into the lower part of the holder. Attempt
to try not to contact the side of the glass. This first liquid is thick, so it's
difficult to pour. One procedure is to set a spoon in the holder. Pour onto
the spoon so the fluid streams down it, as opposed to bringing down the
side of the glass.
Add the following liquid. Either pour it down the spoon, as in the past, or
utilize a baster or pipette to gradually convey the fluid to the highest point
of the main layer. One tip is to rest the spoon or baster tip on the glass
simply over the highest point of the layer. This helps prevent accidental
mixing. Ensure each layer is genuinely thick, so it will appear regardless of
whether a little mixing happens.
Keep adding liquids as such until you're finished. Presently, you can respect
your work or use it as an embellishment. A well-constructed density column
keeps up with its layers for a few hours or days.
When pouring the liquid , pour it from the edge of the cylinder
Results state the outcome of the experiment and the Discussion
Discussion
Our experiment was reliable and accurate by using the density formula of
D=m/v and taking measurements of the volume
Conclusion - explain the outcome; discuss whether it proves or disproves hypothesis
My hypothesis was successful because honey was at the bottom of the cylinder when
calculating the density using the formula D = m/v (density= mass/volume), we got the
highest volume for the honey