Wonderopolis: Why Do We Have Different Time Zones?

What shape is the Earth?

• Sphere

• Cube

• Flat

• Cylinder

How long does it take the Earth to make one full rotation on its axis?

• 48 hours

• 36 hours

• 24 hours

• 12 hours

What is the prime meridian?

• The longest line of latitude

• An imaginary line that divides the Earth into Eastern and Western Hemispheres

• The shortest line of longitude

• The primary dividing line of longitude

What would happen if the entire Earth had a single time zone?

• Every place on Earth would have daylight at the same time

• There would be no need for clocks

• It would be morning, evening, and midnight at the same time in different places

• Noon would be the middle of the day everywhere

How many degrees does the Earth move every 60 minutes?

• 60 degrees

• 45 degrees

• 30 degrees

• 15 degrees

What is the distance between time zones at the equator?

• Approximately 2,000 miles

• Approximately 750 miles

• Approximately 1,038 miles

• Approximately 500 miles

What time system did scientists create in the late 1800s?

• Local time

• Greenwich Mean Time

• Standard time

• Solar time

How many standard time zones are there?

• 12

• 24

• 36

• 48