What makes it hard for an astronaut to breathe in space?

• harsh temperatures

• is an airless vacuum

• heavy equipment

• the air pressure

An astronaut is trying to move from one area of the space shuttle to another. What accommodations does this astronaut need?

• velcro boots

• spacesuit

• handle bars

• oxygen

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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

Spacesuits have layers that have high capacity for thermal insulation in order to -

• regulate body temperature in the extremes of space

• prevent the spread of bacteria that thrive in space

• allow communication with the space station

• prevent the astronaut from sweating inside the suit

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NGSS.MS-PS3-3

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How do astronauts counteract the effects of microgravity on their bones while they are in space?

• monitor sensors outside the space station

• consume twice as many calories as normal

• use exercise equipment on the space station

• breathe at a faster rate than normal

All of the extreme conditions in space that challenge manned space exploration are listed EXCEPT-

• vast temperature ranges

• high air pressure

• space vacuum

• microgravity

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

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

• Gravity

• Space walk

• Mass

• Microgravity

Tiny meteoroids traveling fast enough to damage spacecraft.

• Micrometeoroid

• Meteor

• Asteroid

• Planet

Tags

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