it easier for an object to float in salt water or fresh water?
Large drinking glass
Fill the drinking glass half full of water.
2. Carefully put the uncooked egg in the water. It should sink.
3. Add salt into the water one teaspoon at a time and stir carefully
until it dissolves. *Do not take the egg out while you are adding
How many teaspoons of salt do you have to add before the egg
Now that the egg is floating, take a clean teaspoon and add
one teaspoon of water at a time until the glass is almost full.
The egg should float between the two layers of water; the salt
water on the bottom and the fresh water on the top.
5. Try repeating the experiment using different items such as
a piece of potato, a penny or a marble.
A source book of fascinating facts, projects
and activities. Second edition. Susan V. Bosak with
Douglas A. Bosak and Brian A. Puppa. Scholastic Canada Ltd.
1992. P. 56.