The Sun: A Diagram | Worksheet - Free Printable

1. A flare is a sudden, intense burst of energy and radiation from the Sun's surface, often associated with magnetic activity. A prominence is a large, bright feature extending outward from the Sun's surface, typically in a loop shape, made of cooler plasma suspended by magnetic fields.

2. The core of the Sun produces the most amount of heat and light through nuclear fusion, where hydrogen atoms fuse to form helium, releasing enormous amounts of energy.

3. During a solar eclipse, the photosphere (the visible surface) is blocked by the Moon, making the chromosphere and corona — which are normally too faint to see against the bright photosphere — temporarily visible.

4. Sunspots appear darker because they are cooler regions on the Sun’s surface (photosphere), caused by intense magnetic activity that inhibits convection and reduces the surface temperature compared to surrounding areas.

5. The corona, the outermost layer of the Sun’s atmosphere, can be seen from Earth during a total solar eclipse when the bright photosphere is obscured by the Moon.