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What is the largest planet in our solar system?

• Mars

• Jupiter

• Saturn

• Earth

What force keeps the planets in orbit around the sun?

• Frictional force

• Magnetic force

• Gravitational force

• Centrifugal force

What is the name of our galaxy?

• Andromeda

• Whirlpool

• Milky Way

• Triangulum

What is a black hole?

• A black hole is a planet with a strong magnetic field.

• A black hole is a type of star that emits light.

• A black hole is a region in space with a gravitational pull so strong that nothing can escape from it.

• A black hole is a vacuum cleaner used in space.

What is the speed of light in a vacuum?

• 300,000,000 meters per second

• 299,792,458 meters per second

• 150,000,000 meters per second

• 299,792 kilometers per second

Who was the first person to walk on the moon?

• Yuri Gagarin

• Michael Collins

• Neil Armstrong

• Buzz Aldrin

What is the main component of the sun?

• Oxygen

• Hydrogen

• Carbon

• Helium

What is the difference between a comet and an asteroid?

• Comets are made of metal; asteroids are made of ice.

• Comets orbit the sun in a circular path; asteroids have elliptical orbits.

• Comets are icy and have tails; asteroids are rocky and do not have tails.

• Comets are larger than asteroids and are found in the inner solar system.

What is the term for a planet outside our solar system?

• Moon

• Comet

• Exoplanet

• Asteroid

What phenomenon causes the Northern Lights?

• The reflection of sunlight on ice crystals.

• The eruption of volcanoes releasing gases into the atmosphere.

• The interaction of solar wind with the Earth's magnetic field and atmosphere.

• The alignment of stars in the night sky.