Strange Flames on the International Space Station Quiz

What is one of the main reasons flames are difficult to understand?

• They are a recent discovery.

• They only occur in controlled environments.

• They involve thousands of chemical reactions.

• They are too bright to observe.

How do flames behave differently in microgravity compared to on Earth?

• They produce more soot.

• They extinguish immediately.

• They form little spheres.

• They burn more intensely.

What unexpected phenomenon did researchers discover during the FLEX experiment?

• Flames that produce no heat.

• Fuel droplets burning without visible flames.

• Flames that change color.

• Flames that burn without oxygen.

What is a characteristic of cool flames?

• They are visible to the naked eye.

• They burn at relatively low temperatures.

• They produce soot and carbon dioxide.

• They burn at high temperatures.

What potential application of cool flame chemistry is mentioned?

• Improving solar panel efficiency.

• Enhancing rocket propulsion.

• Developing cleaner auto ignitions.

• Creating more efficient light bulbs.