Making an Egg Float Using Salt Water!

Project Overview:
Is it possible to make an egg float in water without touching it? In this project, you'll attempt to use ordinary table salt to change plain water so that a sinking egg can suddenly float! The main aspect of this project is density, which is what you will be exploring in this project! It demonstrates how density affects whether things sink or float!

Materials:

1. 1 Tall Clear Glass

2. Water

3. About 6 Tablespoons of Table Salt

4. 1 Spoon

5. 1 Raw Egg (not cracked)

Instructions:

1. Fill a clear glass about 3/4 of the way with water

2. Gently place the egg into the glass and observe what happens

3. Take the egg back out and set it aside

4. Add 6 tablespoons of salt to the glass of water

5. Stir the water well until the salt is fully dissolved

6. Gently and delicately place the same egg into the glass of salt water

7. Observe what happens to the egg 

8. Compare what you saw in the plain water versus the salt water

Explanation:
Wondering why the egg sank in the plain water and stayed afloat in the salt water? This is due to density! Density measures how much mass (weight or matter) is packed into a given amount of volume, or the space it takes up. In short, it measures how heavy something is for its size! Density applies to liquids, gases, and solids! The egg sinks in the plain water because the egg is denser than the plain water. However, in salt water, the egg floats. This is because when you added salt to the plain water, you added more mass to the water without significantly increasing the volume! Therefore, you made the water denser than the egg, since the. This means there is more mass, or matter, packed into the same amount of space, making the saltwater heavier and denser than both plain water and the egg!