International Space Station Oxygen Generation Quiz

What is the primary source of oxygen for astronauts on the International Space Station?

• Direct extraction from space

• Recycled water through the Oxygen Generator System

• Oxygen tanks brought from Earth

• Plants grown on the station

What is the process called that breaks down water into hydrogen and oxygen using an electric current?

• Combustion

• Electrolysis

• Photosynthesis

• Fermentation

According to the law of Conservation of Mass, what must be true in a chemical reaction?

• Energy is always absorbed

• Atoms are destroyed

• The number of atoms in reactants equals the number in products

• New atoms are created

What happens to the methane produced from the chemical reactions on the space station?

• It is stored for future use

• It is vented into space

• It is used as fuel for the station

• It is converted back into water

What is the current goal for water recycling efficiency to support long-term missions to the moon and Mars?

• 85%

• 90%

• 93%

• 98%