Sink or Float

Front

What does it mean for an object to float?

Back

An object floats when it is less dense than the liquid it is in, allowing it to stay on the surface.

Front

What does it mean for an object to sink?

Back

An object sinks when it is denser than the liquid it is in, causing it to go to the bottom.

Front

What is density?

Back

Density is the mass of an object divided by its volume, often measured in grams per cubic centimeter (g/cm³).

Front

What is buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid, determined by the weight of the fluid displaced by the object.

Front

What is displacement?

Back

Displacement is the amount of fluid that is pushed aside when an object is placed in it.

Front

Why do some objects float while others sink?

Back

Objects float if they are less dense than the fluid, and sink if they are more dense.

Front

What happens to a balloon filled with air in water?

Back

A balloon filled with air floats because it is less dense than water.

Front

What happens to a rock in water?

Back

A rock sinks in water because it is denser than water.

Front

Can a large object float while a small object sinks?

Back

Yes, size does not determine floating; density does.

Front

What is an example of a floating object?

Back

A wooden block is an example of a floating object.