Carefully place the egg into the drinking glass and fill with water until the egg is fully covered and the glass is about 3/4 full. Observe what happens to the egg: is it standing up? lying sideways?
Use the teaspoon to measure a small amount of salt. Add to the water in the glass and gently stir.
Repeat step 2 until the egg begins to float above the bottom of the glass. How can this be?
Hmm... it seems nobody's added a conclusion for this experiment yet. You can suggest one here.
In seahorses, it's the male that carries the babies and eventually gives birth.