because the submarine has the water tank.when the tank is filled then submarine sink in the water.and when the tank is empty then submarine float in water.
If you just barely float in salt water, you will sink in fresh water.
a submarine has a water tank. when the tank is filled then submarine sink in the water. and when the tank is empty then submarine float in water. use the formula density= mass / volume as mass increases(when the tank is full of water), the density of the submarine increases and it submerge into the water and vice versa.
It is easier to float in salt water than in fresh water.
i think it is ppeople because they float in salt water and sink in fresh water.
the salt makes the water denser then the fresh water so it is easyer to float in.
Ships float in fresh water too. Only a little deeper, since fresh water is less dense than salt water.
Yes. Salt water has a slightly higher density then fresh water which means its a little easier for things to float in salt water. So if it floats in fresh water it will certainly float in salt water.
no< fresh water will become mixed with the salt water
Eggs float in salt water but not in tap water, which is a fresh water. This is because salt water is more dense than fresh water.
put water in to let it sink... then put air into it to let it float...
It is definitely easier yo float in salt water.