Classification of Materials

Front

What is classification?

Back

Classification is the process of grouping objects based on their properties.

Front

What does it mean if something is smooth?

Back

Smooth means that you can easily slide your hand over it without feeling bumps.

Front

What does it mean if something is rough?

Back

Rough means that it has bumps or irregularities that make it feel uneven.

Front

What is an example of a smooth object?

Back

A glass surface is an example of a smooth object.

Front

What is an example of a rough object?

Back

A sandpaper is an example of a rough object.

Front

How can we classify materials?

Back

We can classify materials by their size, color, texture, or hardness.

Front

What does it mean if something is hard?

Back

Hard means that it does not bend or break easily.

Front

What does it mean if something is soft?

Back

Soft means that it can be easily bent or compressed.

Front

What is an example of a hard object?

Back

A rock is an example of a hard object.

Front

What is an example of a soft object?

Back

A pillow is an example of a soft object.