Solar System 4.7a-c; 4.8a-e
Terms in this set (26)
A celestial body moving in an elliptical orbit around a star (in our case our star is the Sun).
A large planet of relatively low density consisting predominantly of hydrogen and helium, such as Jupiter, Saturn, Uranus, and Neptune.
Of, on, or relating to the Earth.
The closest planet to the Sun. This planet is a small, heavily cratered planet. This planet looks like Earth's Moon. Because of Pluto's reclassification this planet is the smallest planet in our Solar System.
The second planet from the Sun. It is similar to Earth's size and mass. The planet has a blanket of clouds that trap so much heat that the temperatures on the surface of this planet can melt metal lead.
The Third planet from the Sun. The atmosphere, liquid water, and it's the distance from the Sun make life sustainable.
The fourth planet from the Sun. The atmosphere is thin, and there is a vast network of canyons and riverbeds. Scientists hypothesize that this planet once supported a wet, warm Earth-like climate.
The fifth planet from the Sun. This is the largest planet in our Solar System and is a Gas Giant. This planet has no solid surface.
The sixth planet from the Sun. Early scientists thought this planet was the only planet with rings. (We now know that all four Gas Giants have rings.)
The seventh planet from the Sun. This planet is a Gas Giant.
The eighth planet from the Sun. This planet appears to be blue through telescopes and is a Gas Giant.
This planet is a dwarf planet in the Kuiper belt (a ring of bodies beyond Neptune) that was originally considered to be the ninth planet from the Sun. On August 24, 2006, this planet was officially changed from a planet to a dwarf planet.
The movement of one object around a center or another object.
The action of spinning around an axis or center point.
Ptolemy & Aristotle
They thought that the Earth was the center of our Solar System.
Copernicus & Galileo
They thought the Sun was the center of our Solar System.
When none of the Moon is visible.
When a slight curve of light is visible on the right side of the Moon, and most of the left side of the Moon is dark.
When the right half of the Moon has light on it, and the left half of the Moon is dark.
When most of the right side of Moon is covered with light , but only a slight curve on the left side of the Moon is dark.
When the entire Moon is covered with light.
When most of the left side of the Moon is covered with light, and only a slight curve on the right side of the Moon is dark.
When the left half of the Moon has light on it, and the right half of the Moon is dark.
When a slight curve of light is visible on the left side of the Moon, and most of the right side of the Moon is dark.
The angle between a planet's rotational axis at its north pole and a line perpendicular to the orbital plane of the planet.
NASA Apollo Missions
Added greatly to our understanding of the Moon. The goal of these missions was to land an American on the Moon and return them safely to Earth.