| A | B |
|---|
| Active Regions | Portions of the photosphere that erupt violently. |
| Active Sun | Sporadic or irregular explosions within the sun that release energy. |
| Chromosphere | The sun’s lower atmosphere. |
| Convection Zone | A zone of constant movement with in the sun. |
| Core | The site of the powerful reactor within the sun that generates all of the Sun’s energy. |
| Corona | Outside part of the sun that creates solar winds. |
| Coronal Holes | Solar “windows” where solar winds are able to escape. |
| Deuterons | Nucleus of two hydrogen atoms combined also called heavy hydrogen. |
| Flares | A type of solar activity that is more violent than prominences. |
| Fusion | The combining of light nuclei into heavier ones. |
| Granulated | Regions of bright and dark gases that are found on the Sun’s surface. |
| Helioseismology | The study of the solar pressure waves within the sun. |
| Isotopes | Elements which contain different number of neutrons. |
| Law of Conservation of Mass and Energy | Mass or Energy can be neither created nor destroyed it can only change form. |
| Luminosity | The total energy that is emitted by the sun in a 3-dimensional sphere (4x1026W). |
| Neutrino | Non-electrically charged little mass particle that travels near the speed of light. |
| Photosphere | The “surface” of the sun that emits radiation. |
| Positron | A particle of a sun reaction is a positively charged electron. |
| Prominences | Loops or sheets of glowing gas ejected from an active region the solar surface. |
| Proton-Proton Chain | The chain reaction that powers the sun. |
| Quiet Sun | The continuous luminosity results from the emission of the photosphere. |
| Radiation Zone | Where solar energy is transported to the surface through convection or radiation from the core. |
| Solar Constant | The amount of energy the sun is able to output per m2 (1400W/m2). |
| Solar Cycle | The measure of sunspots which occur at each year covering 22 year period time in both hemispheres. |
| Solar Maximum | The maximum number of sun spots seen at the middle of a cycle. |
| Solar Minimum | The fewest number of sun spots seen at the beginning or the end of a cycle. |
| Solar Winds | Constant escaping particles released by the sun moving at 500km/s. |
| Standard Solar Model | The accepted view of the interior of the sun. |
| Strong Nuclear Forces | The forces within the atom that keep the nucleus together. |
| Sun | A glowing ball of gas held together by its own gravity and powered by nuclear fission. |
| Sunspot Cycle | The measure of sunspots which occur at each year at a certain time covering 11 years for each hemisphere. |
| Sunspots | A cooler region in the photospheric gas. |
| Supergranulation | Larger scale picture of gas movement within the Sun. |
| Transition Zone | Layer of the sun where temperature rises dramatically. |
| Weak Nuclear Force | Short range nuclear force that is responsible for some nuclear decay. |
