| A | B |
|---|
| auroras | phenomenon appearing as streamers or bands of light |
| Geocentric Model | the belief that the sun revolved around the earth |
| Heliocentric Model | today we know that the sun is the center of the solar system and the earth orbils around the sun |
| revolves | the earth orbits around the sun |
| rotation | the earth rotates on its axis |
| satellite | is an object in space that revolves around another object |
| sun spots | dark spots that appear on the sun's surface |
| thermonuclear fusion | is how the sun gets its power |
| solar eclipse | occurs when the Moon passes between Earth and the Sun, thereby totally or partially obscuring Earth's view of the Sun |
