Leap Year Flashcard

Front

What is a leap year?

Back

A leap year is a year that has one extra day added to it, making it 366 days long instead of the usual 365 days. This extra day is added to February, making it 29 days long.

Front

How often do leap years occur?

Back

Leap years occur every 4 years, but there are exceptions for years divisible by 100 that are not divisible by 400.

Front

What is the rule for determining a leap year?

Back

A year is a leap year if it is divisible by 4, but if it is divisible by 100, it must also be divisible by 400 to be a leap year.

Front

What is the significance of February 29?

Back

February 29 is the extra day added in a leap year, which occurs only in leap years.

Front

What happens to birthdays on February 29 in non-leap years?

Back

People with birthdays on February 29 typically celebrate on February 28 or March 1 in non-leap years.

Front

Why is the year 2100 not a leap year?

Back

The year 2100 is divisible by 100 but not by 400, so it is not a leap year.

Front

How long does it take the Earth to orbit the sun?

Back

It takes the Earth approximately 365 days, 5 hours, 48 minutes, and 56 seconds to complete one orbit around the sun.

Front

What is the Gregorian calendar?

Back

The Gregorian calendar is the calendar system currently used by most of the world, which includes the rules for leap years.

Front

What is the purpose of leap years?

Back

Leap years help to synchronize the calendar year with the astronomical year, ensuring that seasons remain consistent over time.

Front

What is the difference between a common year and a leap year?

Back

A common year has 365 days, while a leap year has 366 days due to the extra day in February.