What happens when water is displaced?
the water is lost
something has taken the place of the water
the water just disappears
What happens to fish when their airbags are full of air? Do they float or sink?
They float to the surface.
Why do big, heavy ships float?
Because they are made of metal.
Due to the shape of the base of the ship.
A ship has special weights in it.
What is a life jacket full of that makes it float?
rocks
air
weights
How does knowing why things float or sink help people?
Helps people build boats and other things that will be used in water
If the object weighs the same as the water that has been displaced, does it float or sink?
floats
Most fish have airbags called:
life jackets
lungs
tubes
swim bladders
Do all heavy things sink?
No
Why will a boat sink if it has a hole in it?
The hole will allow water to get into the boat.