7.9B Accommodations for Space Exploration

A person trained to be part of a spacecraft crew.

• Astronaut

• Space suit

• Space walk

• Micrometeoroids

An activity in which an astronaut moves around and does work outside a spacecraft while in space.

• Microgravity

• Vacuum

• Space suit

• Space walk

A complex system of garments that allow astronauts to work safely outside their spacecraft.

• Astronaut

• Space walk

• Space suit

• Micrometeoroid

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Tiny meteoroids traveling fast enough to damage spacecraft.

• Micrometeoroid

• Meteor

• Asteroid

• Planet

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The condition in which people or objects appear to be weightless.

• Gravity

• Space walk

• Mass

• Microgravity

A volume of space mostly empty of matter, such as oxygen to breathe.

• Mass

• Vacuum

• Gravity

• Density

Space stations require an oxygen system because the atmosphere in space -

• is airless.

• is poisonous.

• smells bad.

• is humid.

Which of the following accommodations on the space station is used by astronauts to combat the effects of microgravity on their bones?

• Special handles

• Velcro® straps

• Exercise equipment

• Oxygen system

Radios are not required for astronauts to talk to each other when they are in the same room inside the space station because –

• the space station is filled with air that carries sound waves.

• astronauts keep their helmets on inside the space station.

• computers are used to communicate inside the station.

• astronauts communicate with sign language inside the station.

Astronauts wear thick gloves when they perform a space walk outside the space station. The gloves provide protection against -

• low gravity.

• nearby comets.

• low oxygen.

• low temperatures.

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