A lemon sinks in normal water and floats in salty water because the density of salt water is more than the normal water.
What floats and what sinks in water.
This is because the nail is unable to displace the amount of water equivalent to its weight.
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An iron nail sinks in water while a flat cup floats.
This is because it is unable to displace that much volume of water.
However if you flatten the clay out into the shape of a raft it floats.
The water is in the middle and the oil floats to the top because it is the lightest.
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So the nail sinks in water.
On the other hand the ship is hollow and the empty space contains air.
Non floating object 12.
Similarly an empty plastic bottle floats on water.
Why diet coke floats but regular coke sinks in water.
Therefore a ship floats on water.
Thoughtful questions about why certain things float in water while certain other t.
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A ball of clay sinks right away.
It sinks to the bottom.
However when you fill it up with water the bottle sinks.
This makes the average density of ship less than that of water.
Objects filled with air also float.