20 questions
Protects life on Earth from harmful particles from solar winds.
distance from the sun
magnetic field
atmosphere
water
Keeps Earth's temperature stable and cool.
distance from the sun
magnetic field
atmosphere
water
Is necessary for life as we know it.
distance from the sun
magnetic field
atmosphere
water
Affects temperature of a planet.
distance from the sun
magnetic field
atmosphere
water
Earth's _____ helps protect life from ultraviolet radiation.
water
oxygen
ozone layer
ice
Earth's atmosphere is mostly made up of the gases _____ and _____.
water and ice
atmosphere and ozone layer
oxygen and nitrogen
oxygen and water
There is some evidence to suggest that Mars once had liquid _____ though now it may be trapped as _____.
water, ice
water, nitrogen
oxygen, nitrogen
nitrogen, ice
If Earth were much smaller than it is now, it would not support life because it would not have enough mass to -
collect needed radiant energy from the Sun
maintain a gravitational pull on the Moon
have sufficient gravity to hold an atmosphere
rotate on its axis
Ozone contributes to supporting life on earth by blocking -
ultraviolet light
water vapor
helium ions
atmospheric heat
Which of the following discoveries about Mars suggests conditions that may have once supported life? Mars has -
the tallest mountain in the solar system
two moons orbiting the planet
only a small amount of atmosphere
small amounts of water in the soil
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
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
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 living quarters and equipment used to protect astronauts while in space
space station
space suit
accommodations
instruments
The protective gear that protects astronauts from the cold, airless environment of space.
space station
space suit
accommodations
instruments
A man-made laboratory that is placed in space for research.
space station
space suit
accommodations
instruments