Ceramics come from ancient times. People used simple items to make them. One was clay minerals. Another was quartz sand. People learned to mix them then bake them. At high heat, the material got hard.

Ceramics are used to make pots. They are used in clay brick and tile. Dentists use them to fill teeth. They do not break down. They do not conduct electricity. They also resist heat.

Scientists can now make ceramics as strong as steel. They mix the ceramic with other material to make it better.