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Have you ever thought why we love eating pickled olive

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Rawda Nader

on 23 February 2014

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Transcript of Have you ever thought why we love eating pickled olive

because it tastes delicious and its salt concentration is accurate
BUT have you ever thought how they manage its concentration ?

I decided to ask my mum how much salt she uses to make this pickle.
She answered showing lovely

I add about two or three cups of salts to a liter of water but I precisely adjust the water salinity to make such a good pickle by using an egg!!!!
EGGS !!!

my scientific mind begin to think Fast ...that phenomena how it occurs ?
I put the egg in the water after adding the salt. If part of the egg floats then this the right amount of salt or else the olives will become soft and spoil.
I constructed Hypothesis

My Hypothesis is that a half liter of water will need 2 cups of salt to float part of the egg and make a good pickle.
Is My hypothesis feasible
I have my resources, capability, enough time and I won't steal anyone's idea

My Independent Variable
: is amount of salt needed
My dependent Variable
: The float of Egg
Controlled Variable
: mass of the egg, size of the container, Amount of water

Have you ever thought why we love eating pickled olive ?!
the answer is
Needed Materials :

• Cups
• Water

1. Prepare three cups of water ; the first one without salt and the others with different amount of .
2. Stir the salt into water
3. Put an egg in each cup of water

4.Look at the eggs ..YEAH..they look awesome

the egg float when we add salt.

The egg has a greater density than freshwater, so it sinks. When salt is added to the water, its density becomes greater than that of the egg. This means that the egg will begin to float.
Density = Mass\ volume

Adding salt to the water increases the density of the water, because the salt increases the mass without changing the volume very much. With enough added salt, the saltwater solution density is higher than the egg's, and the egg will then float. The ability of something, like the egg, to float in water or some other liquid is known as buoyancy.
This is buoyancy
Done by :

Hend Selim Hoda Eisa
Rawda Nader
if you didn't get what we have just said or if you want to see how we performed the experiment .....
check this video .......

Wait A Minute
Full transcript