When Pluto is closest to the sun, the frozen nitrogen on its surface sublimates, meaning it turns into gas, to provide a thin atmosphere. When Pluto is farthest away from the sun, the nitrogen in its thin atmosphere refr... More »

When considering the original gods of Mount Olympus, there are a total of 12. The 12 original gods include Aphrodite, Zeus, Poseidon, Demeter, Artemis, Athena, Hera, Hestia, Pluto, Ares, Apollo and Hermes. More »

Some good classroom science projects for middle school students are make a pinhole camera, designing nature's way, strong structures from flimsy materials, teaching machines to think fuzzy and listening for rings from sp... More »

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When Pluto has an atmosphere, it is thought to be made up of methane, nitrogen and carbon monoxide in gaseous form. This atmosphere outgases from the ice on Pluto's surface when it is closest to the sun, which warms the ... More »

Pluto experiences four seasons that are determined by the tilt of the planet and its changing distance from the sun due to its eccentric orbit. As Pluto moves towards its furthest point from the sun and its north pole fa... More »

Pluto orbits the sun in a little over 90,553 Earth days, which is almost 248 Earth years. One day on Pluto is approximately equal to six and a half days on Earth, so a year on Pluto contains around 14,164 Plutonian days,... More »

www.reference.com Science Astronomy Planets

Pluto is cold because it is, on average, 3.6 billion miles away from the sun. The sun provides heat and energy to the entire solar system, and the farther away planets are from the sun, the colder they are. More »

www.reference.com Science Astronomy Planets