Why do scientists use mock-ups of space vehicles and the ISS before going on space missions?

to practice in-flight operating procedures

Why would scientists need to use a model of the solar system to plan a trip to outer space?

To estimate distance, travel time, and fuel cost

How does the space suit backpack help astronauts breathe in a space environment?

Provides pure O2 for inhaling and canisters to collect CO2

How does atmosphere make the existence of life on earth possible?

allows for gas exchange between plants and animals

What is the Inhabitable Zone?

A distance from the Sun that could allow life on a planet

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Unit 05: Life in Our Solar System

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Science Grade 7 Unit 05: Life in Our Solar System 2016-2017 Review

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Questions 10

Answers

1
Why do scientists use mock-ups of space vehicles and the ISS before going on space missions?
to spend equal amounts of money on missions
to confuse crew members about emergency escape procedures
to discard out-of-date technology and equipment
to practice in-flight operating procedures
2
Which choice shows two accommodations provided by the astronaut's suit?
Microgravity, Air pressure
Food, Waste management
Air pressure, Waste management
Insulation, Microgravity
3
The insulated feature of space suit layers are designed to —
trap excessive CO2
provide pure O2
protect from radiation
regulate temperature
4
Why would scientists need to use a model of the solar system to plan a trip to outer space?
To avoid solar flare-ups and solar winds
To predict emergencies astronauts might encounter
To estimate distance, travel time, and fuel cost
To know where meteorites might be
5
Why does the equipment inside of a space vehicle have to be attached by cords?
Because of gravity
Because of microgravity
Because of loss of gravity
Because of zero gravity
6
How does the space suit backpack help astronauts breathe in a space environment?
Provides pure O2 for inhaling and canisters to collect CO2
Stabilizes an internal temperature of 22° C (72° F)
Maintains air pressure to keep bodily fluids from boiling
Collects urine and solid wastes
7
How does atmosphere make the existence of life on earth possible?
allows small objects to collide with Earth
offers minimal protection from radiation
allows for gas exchange between plants and animals
maintains a constant temperature
8
How could astronauts protect bone health on a space mission?
exercise
Eat more calories
Drink extra fluids
Wear protective clothing
9
Which of the following is not a limitation of a model?
Number of planets
Size of the Sun
Distances between planets
Size of the planets
10
What is the Inhabitable Zone?
A distance from the Sun that could allow life on a planet
A distance from Jupiter that could allow life on a planet
A distance from the Mars that could allow life on a planet
A distance from Earth that could allow life on a planet

Unit 05: Life in Our Solar System Flashcards | StudBud