The Planet Earth

Custom Search

Solar System:


Solar System



Planet Statistics


Phases of the Moon


Space Shuttle

Science Videos

Science Main Index


Interested in information about the planet Earth? Check out this page, or our links to other sites on space and the solar system.

On this Page:


Top of Page

Planet Earth

The Earth is the third planet from the Sun in our Solar System. It is the planet, we evolved on and the only planet in our Solar System that is known to support life. It is 149.6 million kilometers away from the Sun. It has one moon. The Earth is the fifth-largest planet in our Solar System (after Jupiter, Saturn, Uranus, and Neptune).

The Earth's atmosphere is ideal for supporting life. Most of the Earth's surface is covered with water. From the sky, the Earth appears blue. Earth is the only inner planet in our solar system that has liquid water on its surface. Seventy percent of the Earth's surface is covered with water. Mountains, volcanoes, deserts, plains, and valleys cover the remaining 30 percent. Earth has an atmosphere made up of many different gases. The atmosphere gives us air to breathe. We live on the planet Earth.

Each day on the Earth takes 23.93 hours (that is, it takes the Earth 23.93 hours to rotate around its axis once .). Each year on the Earth takes 365.26 Earth days (that is, it takes the Earth 365.26 days to orbit the Sun once).

Rotation and Revolution of the Earth

Top of Page

Rotation of the Earth

Rotation of the Earth: The Earth orbits around the Sun. It takes one year to go around the Sun one complete time. The Earth also rotates, or spins, on its axis. It takes one day to spin around itself one complete time. The Earth's axis is not straight up and down, but tilted at an angle of 23.5 degrees. The rotation is what causes the change from day to night. This tilt is responsible for having seasons. If the Earth were not tilted, we would have the same season all year long.

Revolution of the Earth: The movement of the Earth around the Sun in a fixed orbit is called as revolving. One full orbit around the sun is one revolution. The Earth takes 365 days or 1 year to complete one revolution. The Earth revolves around the Sun because of gravity. The Earth really rotates 365 ¼ times during each revolution. The calendar always has 365 days, after every 4 years, the earth has made one extra rotation. How ever, one extra day is added to the month of February once in every four years forming a leap year with 366 days.

Day and Night

Top of Page

Rotation of the Earth

The Earth exhibits two different kinds of motion. One is rotation around its own axis and another movement is it revolves around the sun in a fixed orbit. The spinning of the Earth around its own axis causes day and night. It takes 24 hours to complete one rotation. However, sunlight shines only on the half of the Earth facing the Sun. That half has day the other half is dark and has a night.

This phenomenon can also be observed with the help of a torchlight or a table lamp focused on a globe, which is made to rotate.


Books about the Planet Earth

Top of Page



Links to other sites about the Planet Earth

Top of Page

Earth http://www.windows.ucar.edu/tour/link
Earth http://www.kidsastronomy.com/earth.htm
About the Earth http://www.windows.ucar.edu/cgi-bin/tour.cgi?link=
The Planet Earth http://www.nasm.si.edu/ceps/etp/earth/earth_spheres.html
View of Earth from the Sun http://www.fourmilab.ch/cgi-bin/uncgi/Earth/action?opt=-s
View of Earth from the Moon http://www.fourmilab.ch/cgi-bin/uncgi/Earth/action?opt=-m

Top of Page

Copyright © 1998-2012 Kidport