Scrambled Eggs Super by Dr. Suess
Hunwick's Egg by Mem Fox and Pamela Lofts
Then, we did an egg experiment. Arin filled a cup halfway with water. Ella dropped an egg into the cup. The egg sank. Then, Arin filled a second cup half way with water. She put ten tablespoons of salt into the cup. Then, Ella put an egg into the cup. It sank. Arin filled a third cup halfway with water. Then she put three tablespoons of salt into the water and gently stirred the water. Ella dropped an egg into the cup. This time the egg began to float. This shows that when the water is saturated with the salt, it creates more buoyancy. This is also why it is easier to float in the ocean than it is in a lake or a pool.
The cup on the left is plain water, the middle has the 3 tablespoons of salt (stirred) and the one on the right has 10 tablespoons of salt (unstirred).