Can a boiled egg float better in salt water or fresh water?

A boiled egg will float better in salt water. Here's why:

* Density: Salt water is denser than fresh water. This means it has more mass packed into the same volume.

* Buoyancy: Objects float when they displace an amount of water that weighs more than their own weight. The denser the water, the more buoyant force it exerts on an object.

* Egg's Density: A boiled egg is denser than fresh water but less dense than salt water.

In summary:

* In fresh water, the egg displaces a smaller amount of water compared to its own weight, making it sink.

* In salt water, the egg displaces more water (due to the higher density of the water) which results in a greater buoyant force, allowing it to float.