How it works
The equator cuts the world into a Northern and a Southern Hemisphere. The prime meridian and the 180th meridian cut it into a Western and an Eastern one. The top map shows the lines; the globes below show each half.
Read the full guide
Lines first, then the halves
Find the equator and the prime meridian on the flat map: they are the two bold lines. The dashed line at both edges is the 180th meridian. Then look at the globes: each shows one half, and the poles are the dots in the middle of the top two. Last, find the seven continents and the five oceans.
- Africa is the only continent in all four hemispheres: the equator and the prime meridian both cross it.
Questions and answers
What are the four hemispheres of the world?
Northern and Southern, split by the equator, and Eastern and Western, split by the prime meridian and the 180th meridian. Every place is in one of each pair, so it lies in two hemispheres at once.
What is the difference between the equator and the prime meridian?
The equator runs east and west around the middle of the Earth, at 0 degrees latitude, and splits north from south. The prime meridian runs from pole to pole through Greenwich, England, at 0 degrees longitude, and splits east from west.
Which hemispheres is the United States in?
The Northern and the Western Hemispheres. All of North America lies north of the equator and west of the prime meridian.
Which hemisphere has more land and people?
The Northern Hemisphere. It holds about two thirds of Earth's land and about nine in ten of its people. The Southern Hemisphere is mostly ocean.