| Definition | Term |
| Middle region of the sun's atmosphere | |
| Trapping of heat by the atmosphere | |
| Smallest terrestrial planet | |
| Kepler found that the shape of the orbit of each planet is a(n) | |
| Eruptions that occur when loops in sunspot regions suddenly connect, releasing large amounts of magnetic energy | |
| Innermost region of the sun's interior | |
| The four outer planets are often called these | |
| The corona gradually thins into streams of electrically charged particles called _____. | |
| Planet that the Great Red Spot is located on | |
| Innermost region of the sun's atmosphere | |
| Part of the sun's interior where loops of gas move energy toward the sun's surface | |
| Fourth planet from the sun | |
| A doughnut-shaped region where most comets are found | |
| Outermost region of the sun's interior | |
| This occurs when the solar wind enters Earth's atmosphere near the poles | |
| Process in which hydrogen atoms join together to form helium, producing energy | |
| A chunk of rock or dust in space | |
| Region of the solar system between the orbits of Jupiter and Mars where most asteriods are found | |
| Type of system where Earth is at the center of the revolving planets and stars | |
| Does Mercury have an atmosphere? | |
| A meteoroid that enters Earth's atmosphere and produces a streak of light in the sky | |