What is a hemisphere?

Answer 1

A hemisphere is half of a sphere.

The names comes from hemi- which means half, so hemisphere means half a sphere.

We often talk about the northern and southern hemispheres which are the halves of our planet north and south of the equator respectively. Similarly, we have the eastern and western hemispheres, the halves of the globe that are either east or west of the prime meridian.

The definition is:

1. A half sphere; one half of a sphere or globe, when divided by a plane passing through its center.

2. Half of the terrestrial globe, or a projection of the same in a map or picture. The most common hemispheric divisions are Northern / Southern and Eastern / Western.

i.e The United States is located in both the western and the northern hemispheres of the Earth.

Answer 2

A hemisphere is half of a sphere, divided along its equator. There are two types of hemispheres – the Northern Hemisphere and the Southern Hemisphere – which are divided by the Earth's equator, and the Eastern and Western Hemispheres, divided by the Prime Meridian.

Answer 3

Half a sphere, example: northern hemi-sphere= half of the earth north of the equator. A sphere is a ball-shaped object.