| A | B |
|---|
| Planet | A satellite of the Sun |
| Eclipse | When one object passes into the shadow of another object |
| Solar eclipse | When the Moon's shadow blocks the Sun |
| Lunar eclipse | When the Earth's shadow blocks the Sun |
| Crater | A hollow area, or pit,in the ground |
| Moon Phase | The apparent change in the Moon's shape. |
| Solar system | The Sun and all the objects that orbits the Sun |
| Telescope | Tool that makes faraway objects appear closer. |
| Atmosphere | A layer of gases that surrounds most planets. |
| Asteroid | A small chunk of rock or metal that orbits the Sun |
| Comet | A body of ice and rock that orbits the Sun. |
| Jupiter | The largest planets in our solar system. |
| Mars | The red planet. |
| Mercury | The closest planet to the sun. |
| Saturn | Planet known for it's beautiful rings. |
| Earth | Third planet from the sun. |
| Pluto | No longer a planet |
| Milky Way | The solar system that contains the sun and the nine planets. |
