| A | B |
|---|
| Ellipse | An oval shape, which may be elongated or nearly circular; the shape of the planets’ orbits. |
| Convection Zone | The outer most layer of the sun’s interior. |
| Photosphere | The inner layer of the sun’s atmosphere that gives off its visible light. |
| Chromosphere | The middle layer of the sun’s atmosphere. |
| Corona | The outer layer of the sun’s atmosphere. |
| Sunspot | The dark area of gas on the sun’s surface that is cooler than surrounding gases. |
| Prominence | A huge, reddish loop of gas that protrudes from the sun’s surface, linking parts of sunspot regions. |
| Asteroid Belt | The region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found. |
| Meteor | A streak of light in the sky produced by the burning of a meteoroid in Earth’s atmosphere. |
| Meteroid | A chunk of rock or dust I space. |
| Meteorite | A meteoroid that passes through the atmosphere and hit Earth’s surface. |
