Spaceship Earth Mystery #2 - Who Set the First Clock

Front

What is a sundial?

Back

A sundial is a device that tells the time by using the sun's shadow.

Front

Why do we use a 24-hour time system?

Back

We use a 24-hour time system because the Ancient Egyptians liked the number 12.

Front

How many hours are there in a day?

Back

There are 24 hours in a day.

Front

What are the two main periods of a day according to the Ancient Egyptians?

Back

The two main periods of a day are Day and Night.

Front

How did the Ancient Egyptians divide the day?

Back

The Ancient Egyptians divided the day into two twelve-hour periods.

Front

What is the significance of the number 12 in timekeeping?

Back

The number 12 is significant because the Ancient Egyptians liked it and used it to divide the day.

Front

What did the Ancient Egyptians use to tell time during the day?

Back

They used sundials to tell time during the day.

Front

What is the total number of hours in both day and night?

Back

The total number of hours in both day and night is 24.

Front

What is the role of shadows in a sundial?

Back

Shadows are used in a sundial to indicate the time based on the position of the sun.

Front

Why is it important to understand how time was measured in ancient civilizations?

Back

Understanding how time was measured in ancient civilizations helps us appreciate the development of timekeeping.