History of Ocean Exploration

Front

Who calculated the circumference of the Earth 2200 years ago?

Back

Eratosthenes

Front

What is the prime meridian?

Back

0 degrees Longitude, passes through Greenwich, England.

Front

Which country became a leader in world exploration in the early 1400s?

Back

Portugal

Front

How did travel by sea change in the 1400s?

Back

It was improved by new technologies.

Front

What is Latitude?

Back

Lines that run parallel to each other and measure distance north or south of the equator.

Front

What is the equator?

Back

0 degrees Latitude.

Front

What is the significance of the North and South Poles in terms of Latitude?

Back

They are the points where lines of Longitude converge, not Latitude.

Front

What are lateral lines?

Back

Lines of Latitude that run parallel to each other.

Front

What is the difference between Latitude and Longitude?

Back

Latitude measures north-south position, while Longitude measures east-west position.

Front

What technological advancements improved sea travel in the 1400s?

Back

The compass, astrolabe, and improved ship designs.