Chapter 14 3.
Sunspots appear dark because they are cooler than the surrounding surface of the sun.
Describe three different types of solar activity. One such material is ice. The Sun is made up of ionized gases and very hot gases. No molecules exist on the Sun. Table 14.2 shows that 92 percent of the atoms in the Sun are hydrogen but only 73.4 percent of the mass of the Sun is made up of hydrogen.