Part one of term paper
is a family of objects, which orbit the sun. They were born 4.6 billion years ago. The most important are the 9 planets, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. Mercury is the closest to the sun and Pluto is the farthest. also includes the stars and the moon. The Heliocentric model was created in 1543 a ...

Part two of term paper
... earth once every 27.3 days. The Moons distance from the earth is 384,400 km (238,620miles). Its diameter is 3,476 km (2,160miles). As the moon orbits the earth we see different amounts of it due to the light from the sun. These are the different phases known to man full, new, crescent, half, gibbous, and new moon. The earth rotates in its axis once a day. The earth is a sphere shaped object. Its diameter is 12,750 km (7,923miles). It takes 23 hours and 56 minutes to rotate once, which is approx ...