How much salt do you need to place in a glass of water with an egg in it to have the egg rise?

Question

My little brother is doing this project for school, and I'm trying to help him by answering this question.

Answer 1

The 'proper' answer is to make the water solution more dense than the egg...however to give measurements would depend on the size of egg and amount of water involved.

The 'basic' formula is:


It's so simple and amazing. A raw egg will float in very salty water but will sink in plain tap water. Why? Salt water is more dense than regular water. You'll need to make a very saturated salt solution by dissolving roughly 4 tablespoons of salt in about 2 cups of water. Use pickling or Kosher salt to make a clear salt solution. Table salt may be used, but the solution will be somewhat cloudy due to the additives used to make the salt free-flowing.

Fill a glass half full with the salt water. Slowly add plain water by pouring it down the sides of the glass being careful not to mix the two liquids. Gently drop the egg into the water and watch as it sinks through the plain water only to abruptly stop when it hits the salt water. It's amazing to see how the egg floats on the top layer of the salt water (even more amazing if you don't know about the bottom layer of salt water!).

Also check out:
http://72.14.205.104/search?q=cache:eEeKWfIQl9wJ:www.deltasee.org/CTC/Activity%252017%2520Floating%2520Eggs.pdf+salt+egg+water+rise&hl=en&ct=clnk&cd=6&client=firefox-a

Answer 2

in hispanic traditions, curanderas (with medical doctors) believe water to have cleansing houses and to carry out the real nature of issues. they advise putting a tumbler of water lower than mattress to work out how properly you're off and to capture each and each of the unfavourable power. if contained in the morning the glass is full of small air bubbles then it signifies that a lot of people envy or dislike you. the water is to get replaced regularly and the former water is to be thrown in shifting water to be purified back.

Answer 3

i did that for my school project, too! It never did work tho.......

Answer 4

you need a box of salt.......................................................................................................