What is the name of the star closest to Earth?

• Sirius

• Proxima Centauri

• Sun

• Alpha Centauri

What type of energy does the Sun provide to Earth?

• Kinetic energy

• Nuclear energy

• Heat and light

• Electrical energy

What is solar energy?

• Energy from the Sun that can be converted into other forms of energy.

• Energy generated from wind and water sources.

• Energy produced by burning fossil fuels.

• Energy stored in the Earth's crust.

What is the Sun's composition?

• About 74% hydrogen and 24% helium.

• About 50% hydrogen and 50% helium.

• About 90% hydrogen and 10% helium.

• About 60% hydrogen and 40% helium.

What is a solar eclipse?

• When the Earth passes between the Moon and the Sun.

• When the Moon passes between the Earth and the Sun.

• When the Sun passes between the Earth and the Moon.

• When the Earth orbits around the Sun.

What happens to the Sun in about 5 billion years?

• It will explode into a supernova and disappear.

• It will expand into a red giant and then become a white dwarf.

• It will remain the same and continue shining as it does now.

• It will collapse into a black hole.

What are the layers of the Sun?

• Core, Radiative Zone, Convective Zone, Photosphere, Chromosphere, Corona

• Mantle, Crust, Outer Core, Inner Core

• Photosphere, Stratosphere, Troposphere, Exosphere

• Core, Atmosphere, Lithosphere, Hydrosphere

What is the temperature of the Sun's surface?

• About 5,500 degrees Celsius.

• About 3,000 degrees Celsius.

• About 7,500 degrees Celsius.

• About 10,000 degrees Celsius.

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

• 5 minutes

• 8 minutes

• 10 minutes

• 12 minutes

Why is the Sun important for life on Earth?

• It provides light and warmth, which are essential for living organisms.

• It creates weather patterns that affect climate.

• It is the center of the solar system and holds the planets in orbit.

• It generates solar energy that can be harnessed for electricity.