Sink or Float

Front

What does it mean for an object to sink?

Back

When an object sinks, it goes down to the bottom of the water because it is heavier than the water it displaces.

Front

What does it mean for an object to float?

Back

When an object floats, it stays on the surface of the water because it is lighter than the water it displaces.

Front

What is buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid (like water) due to the upward force exerted by the fluid.

Front

What happens to a heavy rock in water?

Back

A heavy rock will sink in water because it is denser than water.

Front

What happens to a rubber duck in water?

Back

A rubber duck will float in water because it is less dense than water.

Front

What is density?

Back

Density is the mass of an object divided by its volume. It determines whether an object will sink or float.

Front

If an object displaces a large amount of water, what can we say about its buoyancy?

Back

If an object displaces a large amount of water, it is likely to float because it has a strong buoyant force acting on it.

Front

What is an example of an object that sinks?

Back

An example of an object that sinks is a metal spoon.

Front

What is an example of an object that floats?

Back

An example of an object that floats is a plastic bottle.

Front

What happens to a piece of wood in water?

Back

A piece of wood will float in water because it is less dense than water.