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Small Whale · Reading worksheet

Time in the United States

High school (ages 12+)
Mathematics & Numbers

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/time-in-the-united-states

Step 2 · Questions

1. Who wrote Time in the United States?
2. What is the number of standard time zones?
3. What is the accuracy of atomic clocks?

Step 3 · Words to know

Write what each word means, using the article.

Standard Time Zone
Daylight Saving Time (DST)
Atomic Clock
Coordinated Universal Time (UTC)

Step 4 · Two facts in your own words

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

1.

2.

Answer key (teacher copy)

Answers below are taken from the article’s stored facts, so they match what the student read.

1. Who wrote Time in the United States?Department of Transportation
2. What is the number of standard time zones?9
3. What is the accuracy of atomic clocks?Deviations of less than one second over tens of millions of years

Standard Time Zone: A geographical region that observes a uniform standard time, typically based on longitude.
Daylight Saving Time (DST): A practice of advancing clocks during warmer months to make better use of daylight.
Atomic Clock: A clock that uses the resonant frequency of atoms as its timekeeping element, offering extreme precision.
Coordinated Universal Time (UTC): The primary time standard by which the world regulates clocks and time.