🎥 Experiment: Egg Floating in Salt Water
Interactive Science Animation
Salt
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Place the egg in fresh water. What happens? The egg sinks because it is denser than plain water.
How does it work?
The egg sinks in fresh water because it is denser than the water. When you add salt and stir, the water's density increases. If enough salt is added, the salt water becomes denser than the egg, making the egg float!
Why?
Salt adds more mass to the same volume of water, increasing its density. When the liquid's density is greater than the egg, the upward buoyant force can support the egg's weight, and it floats.
Try this at home:
The egg sinks in fresh water because it is denser than the water. When you add salt and stir, the water's density increases. If enough salt is added, the salt water becomes denser than the egg, making the egg float!
Why?
Salt adds more mass to the same volume of water, increasing its density. When the liquid's density is greater than the egg, the upward buoyant force can support the egg's weight, and it floats.
Try this at home:
- Fill a glass with water and gently place an egg inside. It will sink.
- Add salt, stir well, and try again. The egg will start to float as you add more salt.
- Try to float the egg in the middle by carefully layering fresh water on top of salt water!
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