The science fair web cam question and the sun's Life and Energy

Science Fair Project. Make your recording here or film the recording here so you can upload it to the science fair project

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What process in the sun's core is responsible for releasing energy that eventually reaches Earth?

• Nuclear fission

• Nuclear fusion

• Radioactive decay

• Chemical reactions

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Which of the following best describes the life span of the sun?

• 1 million years

• 10 million years

• 10 billion years

• 100 billion years

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What is the primary element that undergoes fusion in the sun's core?

• Helium

• Carbon

• Hydrogen

• Oxygen

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Which of the following is a product of nuclear fusion in the sun's core?

• Uranium

• Helium

• Iron

• Carbon dioxide

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How does energy from the sun reach Earth?

• Conduction

• Convection

• Radiation

• Reflection

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Which phase of the sun's life cycle is it currently in?

• Red giant

• White dwarf

• Main sequence

• Supernova

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What will the sun eventually become at the end of its life cycle?

• Black hole

• Neutron star

• White dwarf

• Red supergiant

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Which of the following statements is true about nuclear fusion in the sun?

• It combines hydrogen atoms to form helium.

• It splits helium atoms to form hydrogen.

• It combines carbon atoms to form oxygen.

• It splits uranium atoms to form lead.

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What is the primary source of the sun's energy?

• Gravitational contraction

• Chemical reactions

• Nuclear fusion

• Magnetic fields

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