Space Post Quiz

Which of the following is NOT a component of the solar system?

• Asteroids

• Comets

• Black holes

• Planets

What is the correct order of the first four planets from the Sun?

• Mercury, Venus, Earth, Mars

• Venus, Mercury, Earth, Mars

• Earth, Mars, Venus, Mercury

• Mars, Earth, Venus, Mercury

Which force is primarily responsible for keeping the planets in orbit around the Sun?

• Magnetism

• Gravity

• Friction

• Electricity

Which planet is the hottest in the solar system due to its thick atmosphere?

• Mercury

• Venus

• Mars

• Earth

What is the main reason Earth can support life compared to other planets?

• It is the largest planet

• It has liquid water and a suitable atmosphere

• It is closest to the Sun

• It has the most moons

Which of the following best describes the difference between rotation and revolution of Earth?

• Rotation is Earth's movement around the Sun; revolution is spinning on its axis

• Rotation is spinning on its axis; revolution is Earth's movement around the Sun

• Both mean the same thing

• Rotation is the movement of the Moon around Earth

What causes day and night on Earth?

• Earth's revolution around the Sun

• Earth's rotation on its axis

• The Moon blocking sunlight

• The tilt of Earth's axis

How old is Earth according to scientific evidence?

• About 1 billion years

• About 2.5 billion years

• About 4.5 billion years

• About 10 billion years

Which of the following best explains why the Moon has phases?

• The Moon changes shape

• The Moon moves closer and farther from Earth

• The Moon reflects sunlight as it orbits Earth

• The Moon produces its own light

Why do tides occur on Earth?

• The Sun heats the oceans

• The gravitational pull of the Moon and Sun on Earth's waters

• Earth's rotation only

• Wind blowing across the ocean