The Sun

The sun converts matter into energy in the

• corona.
• radiative zone
• convection zone
• core

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NGSS.HS-ESS1-1

Most of the sun’s energy is a result of

• nuclear fusion  
• nuclear fission
• atomic reactions
• coronal mass ejection

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NGSS.HS-ESS1-1

When hydrogen nuclei fuse into helium nuclei

• the nuclei die.

• energy is released.

• particles are created

• particles neutralize.

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What elements make up most of the sun’s mass?

• carbon and oxygen
• carbon and hydrogen
• helium and nitrogen
• hydrogen and helium

During nuclear fusion in the sun, which of the following occurs?

• Atomic nuclei split apart.
• The aurora australis appears.
• hydrogen nuclei combine to produce a helium nucleus.
• A solar eclipse results

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8

How long does it take energy to pass through the radiation zone?

• 12 minutes
• 100 year
• 10,000 years
• 100,000 years

When we look at the sun, what layer are we viewing?

• photosphere
• chromosphere
• corona
• convection zone

The particles of the corona extends into space for millions of kilometers and spreads into streams of electrically charged particles called:

• coronal discharge
• solar flares
• coronal ejection
• solar winds

These are the pretty lights that occur at the north and south poles.

• Photosphere
• Aurora
• Magnetic field
• Solar wind

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NGSS.HS-PS2-5

What are spots on the sun that are cooler than the rest of the sun?

• Solar Flares
• Corona
• Sun Spots
• Sun Rays