How to Float a Hard-Boiled Egg

It may not beat pulling a rabbit out of a hat, but floating an egg in a glass of water can draw a crowd. Eggs, when placed in water, usually fall to the bottom. This occurs because the egg is denser than the water. Using a few simple household items, you can demonstrate an important scientific principle and have fun doing it.

Things You'll Need

• Tall glass
• Spoon
• Salt

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Instructions

1. • 1

     Fill a tall, clear glass with 1 1/2 cups of fresh water.

   • 2

     Add three to four tablespoons of salt to the water. Mix them well until the salt dissolves.

   • 3

     Place the boiled egg in the water. It will float.