| A | B |
| where the sun's energy is made; the innermost layer of the sun | core |
| the outermost layer of the sun | corona |
| the layer of the sun where gases circulate and carry energy to the visible surface of the sun | convective zone |
| cooler, dark areas of the photosphere fo the sun | sunspots |
| may be affected on Earth by the surface activity of the sun | climate |
| when two or more nuclei fuse to form another nucleus; the source of the sun's energy | nuclear fusion |
| dense layer of the sun where light and energy are blocked and sent into different directions | radiative zone |
| the visible surface fo the sun | photosphere |
| caused by the rotation and movement of energy of the sun, and reach far out into space | magnetic fields |
| giant eruptions on the sun's surface | solar flares |