Mission Twinpossible

According to “Mission Twinpossible,” what is one thing that Mark and Scott Kelly have in common?

• They both have been to space in the past.

• They both will set a single-mission record.

• They both want to take a future trip to Mars.

• They both will perform experiments in space.

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As explained in “Mission Twinpossible,” who will join Scott on the International Space Station? Choose two options.

• his twin brother, Mark Kelly

• NASA doctors and psychologists

• program manager Mike Suffredini

• a rotating group of crew members

• Russian cosmonaut Mikhail Kornienko

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In “Mission Twinpossible,” what is the biggest problem with sending astronauts to Mars?

• Their health could be affected by spending a long time in space.

• They could be too old to work after taking such a long journey.

• Their bodies could become injured during a Mars landing.

• They could get sick from living together in close quarters.

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In “Mission Twinpossible,” what is the main question that NASA wants to answer through this mission?

• Are twins affected differently by being in space?

• Why do human bodies change after being in space?

• What are the long-term effects of space on the human body?

• What are the effects of space on different kinds of living things?

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In “Mission Twinpossible,” what is the goal of NASA’s experiment?

• to separate the effects of aging from the effects of space

• to learn whether people with genetic illnesses can survive in space

• to determine why some people are better suited for space than others

• to identify strategies that prevent astronauts’ bodies from being damaged

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Which of the following is an example of performing an endurance test?

• finishing a challenging physical fitness course

• taking a pop quiz about something you learned

• checking to see if the tires on your bike need air

• conducting an experiment to see if an idea is correct

A scientist wants to study how the thin air at great heights affects people who climb mountains. Which of the following would be the sample group in the study?

• anyone who has ever climbed a mountain

• people who have never climbed a mountain

• the mountain climbers being studied

• mountain climbers and non-climbers

What is the meaning of program manager?

• someone who writes code for computer software

• someone who fixes machinery or other equipment

• someone who is in charge of one or more projects

• someone who funds research and experimentation

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Read the introduction to “Mission Twinpossible.”

When Scott Kelly calls home from the International Space Station (ISS) sometime this year, whoever answers the phone might simply hang up on him. The call will be welcome, but the connection can be bad. That can happen when you're placing your call from 229 miles above the Earth. “When someone answers, I have to say, "It's the space station! Don't hang up!" says Scott.

But his brother, Mark, knows the crackle of an extraterrestrial signal in his ear.

What is the main effect of starting the selection in this way?

• It explains how communication systems work on the International Space Station.

• It illustrates one of the main reasons that NASA wants to perform its experiment.

• It sets a quiet tone for the rest of the article and shows that space is not scary.

• It makes the article personal and shows that the brothers have a shared experience

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The following question has two parts. Answer Part A first, and then Part B.

Part A According to “Mission Twinpossible,” why are the Kelly brothers perfect for NASA’s study?

• They have both been to space, so they have experienced identical physical changes to their bodies in the past.

• One twin has retired, so his body will likely show different physical changes than the twin who is still going to space.

• They are biologically identical and are the same age, so differences in their bodies during the next year will likely be caused by space.

• One twin has been on more missions that the other, so comparing them will help NASA determine the effects of space on the body.

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