Properties of Materials (Science Grade Four)

Front

What is a property of materials?

Back

A property of materials is a characteristic that helps us understand how a material behaves, such as whether it floats, sinks, absorbs water, or is hard.

Front

Which material will float?

Back

An empty plastic bottle will float on water.

Front

What does it mean to sink?

Back

To sink means to stay at the bottom of the water.

Front

What does it mean to float on water?

Back

To float on water means to stay on top of the water.

Front

Which material can absorb water?

Back

Cotton can absorb water.

Front

Why do some materials absorb water?

Back

Some materials absorb water because they have tiny holes that let the water in.

Front

What is an example of a material that sinks?

Back

A coin is an example of a material that sinks.

Front

What is buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid.

Front

What is density?

Back

Density is the mass of a material divided by its volume, which helps determine if it will float or sink.

Front

What is a waterproof material?

Back

A waterproof material is one that does not allow water to pass through it, like plastic.