| Question | Answer |
| What spectrum is produced by bright lines at certain wavelengths? | |
| What is the splitting of heavy atomic nuclei into the smaller, lighter atomic nuclei called? | |
| What spectrum is also called the sun spectrum? | |
| What is the combining of lightweight nuclei into heavier nuclei? | |
| In the sun, what percent of its mass is hydrogen? | |
| What is another active feature sometimes associated with flares called? | |
| What spectrum is produced by glowing liquids or solids? | |
| What is visible light arranged according to wavelengths called? | |
| In the core of the sun, what is a product of the process in which hydrogen nuclei fuse? | |
| What is the layer of atmosphere called that is located above the photosphere? | |