Screen Time Can Mess with the Body's Clock

According to “Screen Time Can Mess With the Body’s ‘Clock,’” why do experts recommend against using electronic readers and similar devices when going to bed?

• The light from the screen can upset the body's internal clock.

• Reading is too stimulating for people who are trying to sleep.

• The screen can catch fire and burn your entire school down

• People are too tempted to engage in social media if the screen is on.

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CCSS.RI.6.1

CCSS.RL.6.1

CCSS.RI.6.8

CCSS.RI.7.1

CCSS.RL.7.1

According to “Screen Time Can Mess With the Body’s ‘Clock,’” what is the purpose of melatonin? Choose two options.

• It gets the body ready to sleep.

• It makes the body alert and restless.

• It tells the body that darkness has fallen.

• It tells the body that it is time to PPPAAARTAY

• It helps the brain awaken from a deep sleep.

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CCSS.RI.6.2

CCSS.RL.6.2

CCSS.RI.5.2

CCSS.RI.7.2

CCSS.RL.7.2

What was the author’s most likely purpose for writing “Screen Time Can Mess With the Body’s ‘Clock’”?

• to explain possible effects of using electronic devices before trying to sleep

• to describe the effects of too much sleep on the way people feel during the day

• to persuade people that electronic devices are better than print books

• to explain why many people have stopped sleeping

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CCSS.RI.6.6

CCSS.RI.6.9

CCSS.RL.6.6

CCSS.RI.7.9

CCSS.RI.7.6

What concern did lighting scientist Mariana Figueiro express about the study in Boston, as explained in “Screen Time Can Mess With the Body’s ‘Clock’”?

• The results might not apply in real life.

• The scientists involved did not look at all the facts.

• The study might not lead people to change their behavior.

• The information could cause a drop in the sale of tablet computers.

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CCSS.RI.6.10

CCSS.RI.7.10

CCSS.RI.8.10

CCSS.RI.9-10.10

CCSS.RI.11-12.10

Identify the choice that best answers the question.

Use context clues to determine the most likely meaning of environment as it is used in this quotation by sleep researcher Anne-Marie Chang in “Screen Time Can Mess With the Body’s ‘Clock.’”

“And these effects might be worse in the real world as opposed to the controlled environment we used.”

• beliefs

• reasons

• beginnings

• setting

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CCSS.RL.6.4

CCSS.RI.6.4

CCSS.RL.5.1

CCSS.RL.5.4

CCSS.RI.5.4

Choose the most likely meaning of previously as it is used in this passage from “Screen Time Can Mess With the Body’s ‘Clock.’” Use context clues to help you.

• In a different time zone far far away...

• in a friendly way

• at an earlier time

• In a horrible way

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CCSS.RI.6.4

CCSS.RL.6.4

CCSS.RL.5.1

CCSS.RI.7.4

CCSS.RL.5.4

Given the details in “Screen Time Can Mess With the Body’s ‘Clock,’” choose the most likely long-term effect of using an e-reader before bed.

• Many people may stop trying to sleep and eventually die

• A small number of people may sleep too much and fall into a sleep coma

• screen time before trying to sleep does not really effect your long term health

• Some people may develop serious medical issues.

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CCSS.RI.6.3

CCSS.RI.5.3

CCSS.RI.7.3

CCSS.RI.4.3

CCSS.RI.8.3

What is the author’s main purpose in Screen Time Can Mess With the Body’s “Clock”?

• to explain possible effects of using certain electronic devices before trying to sleep

• to describe the effects of too much sleep on the way people feel during the day

• to persuade people that electronic devices are better than print books

• to explain why many people have stopped reading print books

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CCSS.RI.6.9

CCSS.RI.6.6

CCSS.RL.6.6

CCSS.RI.7.6

CCSS.RI.7.9

Which quotation from the article best supports the answer in PART A?

• An internal “clock” helps regulate when we eat, sleep and wake. Exposure to the light of day and darkness of night keeps its timing set to a roughly 24-hour cycle. (paragraph 4)

• Scientists long have known that light at night can disrupt that internal clock. And it does so by suppressing melatonin. (paragraph 6)

• People took nearly 10 minutes longer to fall asleep, on average, after reading on the iPads. They also spent less time in rapid-eye movement (or REM) sleep. (paragraph 10)

• Lighting scientist Mariana Figueiro calls the study thorough. She also finds its results unsurprising. (paragraph 13)

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CCSS.RI.6.10

CCSS.RI.7.10

CCSS.RI.8.10

CCSS.RI.9-10.10

CCSS.RI.11-12.10

After reading this article, do you think you will change how you use your electronic devices before bedtime? (Please explain your answer)

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