5.3 Floating and sinking
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Name:_______________________ Class:____
5.3 Floating and sinking
1. Place a “T” – (True) or “F” – (False) in the blank
to the left of the following statements.
1.____All objects will float in water.
2.____A boat floats because it is made of metal.
3.____Hot air balloons float because they are filled with a gas
lighter than air.
4.____A submarine can only sink, it cannot float
5.____An object will sink deeper in water as the force of
gravity increases.
6.____An object floats because it pushes down on the water.
7.____An anchor will sink because it is heavier than the mass
of the water it will displace.
8.____The shape of an object affects how its float in water.
5.3 Floating and sinking
2. Can you guess whether these objects will sink or
float? Tick “X” in the box and try to do the
experiment on your own to check.
Objects
A pencil
A cork
Paper clips
A bottle cap
Coins
An empty plastic bowl
A plastic bowl full of water
Sink Float
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5.3 Floating and sinking
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