Intro to the Sun

What is at the center of the Solar System?

• Earth

• Moon

• Sun

• Jupiter

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What force keeps the planets orbiting the sun?

• Gravity

• Magnetism

• Electricity

• Friction

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When the Earth travels all the way around the Sun, it is called a . . .

• Day

• Rotation

• Year

• Spin

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What is the primary source of energy for the Earth?

• Nuclear power

• Wind energy

• The Sun

• Geothermal energy

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

• Core

• Photosphere

• Corona

• Chromosphere

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What is the process called in which the Sun produces energy?

• Combustion

• Nuclear fusion

• Nuclear fission

• Radiation

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

• 8 minutes

• 1 hour

• 24 hours

• 1 second

What is the approximate temperature of the Sun's core?

• 1,500°C

• 5,500°C

• 15,000,000°C

• 100,000°C

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Which element is most abundant in the Sun?

• Oxygen

• Helium

• Hydrogen

• Carbon

What phenomenon causes the Sun to appear red during sunrise and sunset?

• Reflection

• Refraction

• Scattering

• Diffraction