The document summarizes key aspects of energy from the sun and its atmospheric features. The sun's energy comes from nuclear fusion reactions in its core that convert hydrogen into helium. This outward pressure is balanced by the sun's inward gravitational force, maintaining stability. The sun's atmosphere has three layers - the visible photosphere, the middle chromosphere, and the outer corona containing hot gases that flow out as solar winds. Sunspots, prominences, and solar flares are prominent atmospheric features.

1. The Sun 26.1 Energy From the Sun Forces in Balance Atmosphere Features

2. Energy From the Sun Sun Give of Electromagnetic Radiation = Energy that is given off in Waves Ex. Ultraviolet Light = Sun Burn Energy for the sun = Nuclear Fusion in the core… Small nuclei combine with other small nuclei making a massive nuclei & releasing lots of energy

3. Fusion Reaction Deuterium-deuterium reactions - Two deuterium atoms combine to form a helium-3 atom and a neutron.

4. Radio Waves Visible Light X-rays Radiation Microwaves

5. Forces in Balance The sun is stable because of two forces The pressure of nuclear fusion pushing outward The force of gravity pulling inward

6. Atmosphere Sun’s Atmosphere is made up of 3 layer Photosphere = Inner layer of atmosphere — The visible surface of the sun — Has a bubbly appearance called Granules

7. Chromosphere Chromosphere = Middle layer of atmosphere— Name = sphere of color can be seen when photosphere is blocked

8. Corona Corona = Outer layer of atmosphere— Gasses in layer a very hot 1million Kelvins— Beginning of solar winds = charged particle that flow out from the Corona— Earth magnetic field deflects cause the auroras

9. Features Sunspots = Areas of gas in the photosphere that are cooler than surrounding gases Prominences = are huge loops of gas that erupt from sunspot regions Solar Flares = a sudden release of energy from sun