question: What is made of molecules of many different gases, and is something we usually can’t see, taste, or smell; we can only feel it when it moves?
distractor3: sound
distractor1: water
distractor2: light
correct_answer: air
support: Air is easy to forget about. We usually can’t see it, taste it, or smell it. We can only feel it when it moves. But air is actually made of molecules of many different gases. It also contains tiny particles of solid matter.