This substance undergoes a chemical change when heat is applied.

In this experiment, you can observe a chemical reaction.

This compound is stable in the solid phase.

The existence of dark matter has not yet been fully proven.

Antibiotics don't work for colds, so please don't take them unnecessarily.

It is said that antimatter has properties opposite to those of matter.

This food may contain carcinogens.

The air in this area is greatly affected by pollutants emitted from factories.

We exist as a part of the material world.

The lens of my camera has broken.