In the physics lab, ideal gases are often used to test thermodynamic theories.

Researchers studied how liquid gases behave under extreme pressure to improve storage techniques.

Scientists measured the concentration of greenhouse gases in the atmosphere over the past decade.

Researchers discovered traces of several degraded mustard gases at the abandoned testing site.

After the protest turned violent, the officer tear-gases the crowd to regain control.

Journalists wore masks after police used tear gases to disperse the crowd.

The researchers documented the long-term health effects experienced by veterans exposed to nerve gases during training accidents.

The laboratory installed new filters to capture the harmful off-gases produced during the experiment.

The commander tear gases the demonstrators to break up the march.

He gases up the car before long road trips.