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Explore Earth

Student Planet Facts

Earth and the continent of Africa


Click to Start Field Trip to Mars Field Trip to Mars, Mars Features on Earth
is a self-guided excursion to view various sites located on or near the central plateau of Washington that correlate to features found on Mars.
Included is a section on volcanoes with a page about Mount St. Helens, an active volcano that "blew its top" in 1980. Also included is information on Mars Pathfinder, earthquakes, giant floods, sand dunes, lava flows, dust devils, and geological background material. Click image or here to go to Field Trip to Mars.

How much would you weigh on the Moon?
Type your weight in here:
You would weigh about:

Gravity and You
Your weight on Earth is determined by your mass and Earth's mass. Would you weigh more or less on the Moon?

Click for Planet Myths and Lore Planet Names
Why are the planets named for Roman gods? Is there a story or myth about the sun? Click image or here for Planet Myths and Lore.

Click for Mars Opposition pageClose Encounter with Mars
Every two years or so the Sun, Earth and Mars line up. This is called an opposition. In 2003, Earth and Mars were really close.
Click image or here for Mars Opposition 2003 page. (Hubble ST image)

Click for NASA/JPL PlanetquestAre There Planets Like Earth Around Other Stars?
The first planet outside of our solar system was discovered around 51 Pegasi, a small star in the constellation Pegasus. Since then more than 100 planets have been found. For more information on how astronomers discover new planets,
click image or here NASA/JPL Planetquest.

Click for Near Earth Objects Could the Earth and an Asteroid collide?
See what scientists know about Near-Earth Objects.

Blast off on a Planetary Scavenger Hunt! Planetary Scavenger Hunt!
You will need to gather some facts,
compare your data and answer some questions.
Click here to blast off!

Quick Facts about the Earth
Topic Data
Diameter 12,756.28 km
Density 5.515 g/cm3
Mass 5.976 x 1024 kg
Volume 1.087 x 1012 km3
Temperature Range -69° C to 58° C
Atmospher Mostly Nitrogen and Oxygen
Winds 483 km/hr
Moons One
Average Distance from Sun 149,597,870 km
Orbital Period 1 Year, 0 Days, 0 Hours
Rotation 23 Hours 56.1 Min
Tilt 23.45°
Rings None
Composition Iron Core, Silicate Surface
Magnetic Field Up to 362000 km from Surface

Click below to find out more about the Moon and the Sun:

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The Nine Planets
NASA Planet Facts

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Kids' Cosmos… Expanding Minds Beyond the Limits of the Universe

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© 2011 Kid's Cosmos
© 2011 Kid's Cosmos
Kid's Cosmos