Earth Facts.

Gallegos ElementaryScience/Tech. Dept.

Earth is the 3rd planet from the Sun.

It takes the Earth 1 year or 365 days to orbit/revolve around the Sun.

Earth is a water planet.

Around 75% of the Earth is water.

25%

25%25%

25%

Land Water Water Water

Of all the water on Earth we can only drink less than 1% of it.

The Earth is divided into 4 hemispheres.

If the Earth is a sphere.

What is a hemisphere?

Then a hemisphere is half a sphere.

There are the Northern and Southern Hemispheres.

Northern Hemisphere

Southern Hemisphere

We live here.

There are the Western and Eastern Hemispheres.

Western Hemisphere

Eastern Hemisphere

We live here.

Earth also has an imaginary line called an axis.

Axis

Axis

Axis

Axis

The Earth rotates/spins on its axis.

It takes the Earth 1 day or 24 hours to rotate/spin on its axis.

Axis

Axis

The Earth’s rotation on it’s axis also gives us night and day.

Daytime

Night timeAxis

Axis

The axis of the Earth also shows that the Earth is tilted to one side.

Axis

Axis

The tilt of the Earth gives us Summer and Winter.

Axis

Axis

When the axis of the Northern Hemisphere is tilted toward the Sun it is our Summer.

Axis

Axis

Summer in the Northern Hemisphere.

Winter in the Southern Hemisphere.

When the axis of the Northern Hemisphere is tilted away from the Sun it is our Winter.

Axis

Axis

Winter in the Northern Hemisphere.

Summer in the Southern Hemisphere.

The 4 Seasons

Summer

Spring

Winter

Fall

Review the following Earth Facts.

• Earth takes 1 year or 365 days to orbit/revolve around the Sun.

• Around 75% of the Earth is water.• Earth has 4 hemispheres. We live in the Northern

Hemisphere• It takes the Earth 1 day or 24 hours to spin on its axis.• Day and night are caused by Earth’s rotation on its

axis.• The seasons such as Summer and Winter are caused

by the Earth’s tilt.

The End