| A | B |
| Hydrogen | Main gas in the Sun |
| Spicules | Spikes of hot gas that appear like the fuzz on a peach when the edge of the Sun is examines |
| Fusion | Nuclei of smaller atoms join together to form larger ones |
| Fission | Nucleus of an atom splits into two smaller nuclei |
| Solar Core | The innermost region of the Sun |
| Photosphere | The visible surface of the Sun |
| Chromosphere | Reddish colored region of solar atmosphere |
| Prominences | High clouds of gas erupting from areas around sunspots |
| Solar Flare | Prominence that is large enough to leave the Sun |
| Corona | Region of very unstable gas which extends out into space |
| Solar Wind | Formed from particles that are moving rapidly enough to escape the Sun's gravity |
| Helium | The second most abundant gas that makes up the Sun |
| Aurora Borealis | A beautiful effect of solar wind on Earth |
| Sunspot | A dark spot on the surface of the Sun, where magnetic storms cool the surface |