Solar Phenomena and Their Effects

Miss Ken provides an overview of the Sun, discussing its layers: the Photosphere, Chromosphere, and Corona. The Photosphere is the Sun's surface, appearing yellow at 6,000°C. The Chromosphere, at 4,000°C, has a reddish tint, while the Corona, visible during solar eclipses, reaches 2 million°C. Sunspots, cooler dark areas on the Sun, vary over an 11-year cycle. Solar flares, eruptions of charged atoms, are deflected by Earth's magnetic field, preventing interference with technology. Solar winds create auroras, and the Sun's energy comes from fusion, converting hydrogen to helium, unlike human-made fission used in nuclear warfare.

What is the approximate temperature of the Photosphere?

• 10,000°C

• 4,000°C

• 6,000°C

• 2 million°C

Which layer of the Sun is visible during a solar eclipse?

• Core

• Corona

• Chromosphere

• Photosphere

What is the main characteristic of sunspots?

• They are hotter than the surrounding areas.

• They are cooler and darker than the surrounding areas.

• They are brighter than the surrounding areas.

• They are the same temperature as the surrounding areas.

How often do sunspots vary in their cycle?

• Every 15 years

• Every 11 years

• Every 5 years

• Every 20 years

What protects Earth from the harmful effects of solar flares?

• The ocean

• The magnetic field

• The atmosphere

• The ozone layer

What is a solar flare?

• A cool spot on the Sun's surface

• An outward eruption of electrically charged atoms

• A layer of the Sun

• A type of solar wind

What natural phenomenon is associated with solar winds?

• Earthquakes

• Auroras

• Tornadoes

• Volcanic eruptions

What process does the Sun use to produce energy?

• Evaporation

• Combustion

• Fusion

• Fission

What elements are involved in the Sun's fusion process?

• Hydrogen and Helium

• Carbon and Oxygen

• Oxygen and Nitrogen

• Helium and Carbon

What is the primary use of fission on Earth?

• Solar energy

• Nuclear warfare

• Hydroelectric power

• Wind energy