| A | B |
|---|
| New Moon | The lighted side of the Moon faces away from the Moon. The Moon that we see looks very dark. |
| Mars | fourth planet from the Sun |
| Full Moon | The lighted side of the Moon faces the Earth. the Moon that we see is very bright from the sunlight reflecting off it. |
| Third Quarter | The right half of the Moon appears |
| stars | spheres of hot gases that give off light and heat |
| revolution | is the time it takes the Earth to make one complete trip around the sun in a circular or nearly circular path. |
| axis | is a real or imaginary line that an object spins around. |
| rotation | the time it takes the Earth to make one complete spin on its axis. |
| orbit | is the path an object takes as it travels around another object. |
| phase | is a change in the appearance of the Moon |
| solar system | is the Sun and all the objects that travel arount it. |
| comet | is a chunk of ice, rock, and dust that travels around the Sun. |
| constellation | is a group of stars that appear to form a pattern in the night sky. |
| gravity | is a force of attraction between all objects. |
| telescopes | make objects is space look closer |
| planets | are round objects in space that are satellites of the Sun. |
| sun | largest object in the Solar System |
| Earth | third planet from the Sun |
| Jupiter | fifth planet from the Sun |
| Neptune | eighth planet from the Sun |
| Mercury | first planet from the Sun |
| Saturn | sixth planet from the Sun |
| Venus | second planet from the Sun |
| Uranus | seventh planet from the Sun |
| First Quarter | The left half of the Moon appears lighted and the right side of the Moon appears dark. |
