7.9b

What are the conditions in space?

• extreme temperatures, no atmosphere, microgravity, Ultraviolet radiation

• extreme temperatures, no atmosphere, microgravity, no radiation

• extreme temperatures, no atmosphere, macrogravity, Ultraviolet radiation

• extreme temperatures, no atmosphere, macrogravity, Radiation

Other than providing oxygen, what is the most important thing a space suit does for astronauts on a space walk?

• Allows them to conduct experiments

• Allows freedom of movement

• Protects from radiation

• Gives them water to drink

Space stations require an oxygen system because in space -

• there is no air or atmosphere

• is poisonous

• smells bad

• is humid

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 packs

• small radio communicator

• tough outer shell

Which of the following characteristics of a planet will have the greatest influence on determining whether or not its temperature will be suitable to support life?

• The amount of its gravitational force.

• The number and size of active volcanoes.

• The tilt of the axis of rotation of the planet.

• The distance from the Sun of its orbit.

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

• Microgravity

• Vacuum

• Space suit

• Space walk

Tags

NGSS.MS-PS2-5

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

• Gravity

• Space walk

• Mass

• Microgravity

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

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

• Astronaut

• Space walk

• Space suit

• Micrometeoroid

Tiny meteoroids traveling fast enough to damage spacecraft.

• Micrometeoroid

• Meteor

• Asteroid

• Planet