Life and Work on the International Space Station

What is the primary reason astronauts do not need beds to sleep in space?

• There is no gravity to lie down in

• Sleeping bags are attached to the walls

• The space station provides special sleeping chairs

• Astronauts do not sleep in space

How do astronauts sleep in space?

• On the floor

• In personalized sleeping bags

• Floating freely in the cabin

• In horizontal beds

How do astronauts brush their teeth in space?

• Using a regular toothbrush and toothpaste

• With a specially designed space toothbrush

• Using water and soap

• They do not brush in space

What happens to the water when astronauts brush their teeth?

• It floats away in bubbles

• It is sucked into a vacuum system

• It is recycled immediately

• It behaves as on Earth

What is unique about the toilets on the ISS?

• They are larger than earth toilets

• They are exactly like earth toilets

• They use air suction to function

• There are no toilets on the ISS

What do astronauts use to clean up in the bathroom if needed?

• Sandpaper

• Disinfectant wipes

• Water hoses

• Regular toilet paper

Which types of food are available on the ISS?

• Only packaged foods

• Fresh fruits and vegetables only

• A variety of international cuisine

• Only dehydrated meals

What do astronauts do with leftover food in space?

• Sent back to Earth for analysis

• Rehydrated and reused

• It is disposed of outside the ISS

• They store it for later

Why do astronauts need to exercise in space?

• To prevent muscle and bone density loss

• To pass time

• Because it is a mission requirement

• To prepare for return to Earth

What is the purpose of the exercise machines being not firmly attached to the walls?

• To challenge the astronauts more

• Because they are broken

• To prevent transmission of forces to the station structure

• To allow easy relocation

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