Salt Water Experiments For Kids

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Salt Water Experiments For Kids - Where we float better? 

Why is it easier to swim in the sea but not in the pool?

Materials needed 

  • 1 egg
  • 1 cup
  • Water
  • Salt
  • 1 teaspoon

Experience 

  1. Fill the glass up to one third of its capacity, add three teaspoons of salt and mix. Add more salt until no more will dissolve (salt is deposited at the bottom of the glass).
  2. Now place the egg gently into the glass. Watch as floats.
  3. By tilting the glass, gently drop the egg water to fill the glass.

What do you notice?

Salt Water Experiments For Kids The Explanation

The egg stays in the middle of the glass!, Between fresh and salt water, which
have been mixed.
When an egg is immersed in water displaces the volume of an egg
water around it. Salt water is denser than fresh, which means
an egg in salt water is heavier than an egg from fresh water. The
procedure shows that a chicken egg is heavier than a water
sweet, but lighter than an egg with salt water. Salt water is more
dense than the egg and pushes it up towards fresh water.
What happens to the egg, the body also happens to swimmers: they can float
better at sea than a lake, or pool, because they are pushed further
strongly up in saltwater than in freshwater.

The application

The Mediterranean Sea is almost closed. Much
surface water evaporates in the heat
the sun, making it highly concentrated salt
(Containing an average of 38 gr. Of salts per liter
to 35 gr. Atlantic Ocean). When
waters of the Mediterranean and the Atlantic enter
contact, in the Strait of Gibraltar is produced,
sometimes a strange phenomenon: water
Mediterranean is a huge bubble that
can move to the Irish coast. Want
that at no time the water is mixed
the oceans, because of their differences
salt concentration