Astronauts

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.

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 which thrive in space.

• allow communication with the space station.

• prevent the astronaut from sweating inside the suit.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What design element of an astronaut’s spacesuit protects him or her from micrometeoroids, which are tiny bits of space debris travelling at high speeds?

• Large oxygen tank

• Powerful jet pack

• Small radio communicator

• Tough outer shell

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.

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

• Gravity

• Space walk

• Mass

• Microgravity

The protective gear that protects astronauts from the cold, airless environment of space.

• space station

• space suit

• accommodations

• instruments

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

• prevent the spread of bacteria that thrive in space

• regulate body temperature in the extremes of space

• allow communication with the space station

• prevent the astronaut from sweating inside the suit

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

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

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

• microgravity

• vacuum

• space suit

• space walk