The Sun

What type of reaction occurs at the core of the Sun?

• Nuclear fusion

• Electrolysis

• Acid Base Reaction

• Combustion

Which layer is the one we can see during a solar eclipse?

• Corona

• Core

• Radiative

• Convection

Which layer has gasses that are heating and cooling, causing them to rise and sink.

• Corona

• Core

• Convection

• Photosphere

Which layer is reddish in color?

• Chromosphere

• Corona

• Core

• Photosphere

Photons can take 20 million years to get out of this layer...

• Corona

• Chromosphere

• Convection

• Radiative

Which layer do we see during the day?

• Photosphere

• Chromosphere

• Radiative

• Core

When atom nuclei combine...

• Mass

• Conduction

• Nuclear Fusion

• Atomic Absorption

Temporary spots on the Sun's surface that are darker than the surrounding area. They are regions of reduced surface temperature caused by concentrations of magnetic flux that inhibit convection.

• Solar Flux

• Sunspots

• Magnetic Flux Spots

• Solar Magnetic Spots

1. A brief eruption of intense high-energy radiation from the sun's surface, associated with sunspots and causing electromagnetic disturbances on the earth, as with radio frequency communications and power line transmissions.

• Sunspot

• Magnetic Flux

• Solar Flare

• Magnetic Flare

How long does it take for the Sun's light to reach Earth?

• About 8 minutes

• About 30 minutes

• About 8 seconds

• About 1 minute