Solar System Quiz: Do You Know Everything?

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Edward Hung
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Solar System Quiz: Do You Know Everything? - Quiz


Our solar system is made up of eight planets and the sun. Each planet is different from the other and has over a hundred moons. The sun is a star with a strong gravitational pull and radiates heat and light to the planets. How long does it take the earth to go round the sun? This quiz will help you learn some more about the sun and the bodies around it.


Questions and Answers
  • 1. 

    Our sun is seen from outer space as a

    • A.

      Planet

    • B.

      Star

    • C.

      Moon

    • D.

      Asteroid

    Correct Answer
    B. Star
    Explanation
    Our sun is seen from outer space as a star because it is a massive ball of gas that emits light and heat due to nuclear fusion reactions happening in its core. It is the closest star to Earth and provides us with light and warmth. The sun's immense gravitational pull holds the planets in orbit around it, making it the central object of our solar system.

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  • 2. 

    Who was the first astronaut to land on the moon?

    • A.

      Neil Armstrong

    • B.

      Buzz Aldrin

    • C.

      Andy Thomas

    • D.

      George Lincoln

    Correct Answer
    A. Neil Armstrong
    Explanation
    Neil Armstrong was the first astronaut to land on the moon. He made history on July 20, 1969, as part of the Apollo 11 mission. Armstrong famously took the first steps on the lunar surface, uttering the iconic phrase, "That's one small step for man, one giant leap for mankind." His achievement marked a significant milestone in human space exploration and solidified his place in history as the first person to set foot on the moon.

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  • 3. 

    The moon has gravity, but it does not have ___________ that is why astronauts must wear __________ ____________.

    • A.

      Rocks; tennis shoes

    • B.

      Trees; shirts and pants

    • C.

      Cars; jackets and mittens

    • D.

      Air; space suits

    Correct Answer
    D. Air; space suits
    Explanation
    The moon has gravity, but it does not have air. This is why astronauts must wear space suits. Space suits provide them with the necessary air supply and protection from the vacuum of space.

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  • 4. 

    How long does it take for the Earth to revolve around the sun?

    • A.

      5 minutes

    • B.

      24 hours

    • C.

      365 days

    • D.

      5 months

    Correct Answer
    C. 365 days
    Explanation
    The correct answer is 365 days because it takes one year for the Earth to complete one full revolution around the sun. This is known as a solar year and it is the basis for our calendar system.

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  • 5. 

    What is the sun and the celestial bodies that orbit the sun, including planets, satellites, asteroids, comets, dust, and gas called? 

    • A.

      Asteroid Belt

    • B.

      Planets

    • C.

      Atmosphere

    • D.

      Solar System

    Correct Answer
    D. Solar System
    Explanation
    The sun and all the celestial bodies that orbit it, such as planets, satellites, asteroids, comets, dust, and gas, are collectively called the solar system.

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  • 6. 

    What is the name of our Galaxy including our Sun and Solar System?

    • A.

      Andromeda

    • B.

      Milky Way

    • C.

      Cartwheel

    • D.

      Magellanic Cloud

    Correct Answer
    B. Milky Way
    Explanation
    The correct answer is Milky Way. The Milky Way is the name of our galaxy, which includes our Sun and solar system. It is a barred spiral galaxy that is part of the Local Group of galaxies. The name "Milky Way" comes from the hazy band of light that can be seen in the night sky, which is caused by the billions of stars and other celestial objects that make up our galaxy.

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  • 7. 

    Earth is the __________ planet from the Sun.

    • A.

      2nd

    • B.

      3rd

    • C.

      4th

    • D.

      5th

    Correct Answer
    B. 3rd
    Explanation
    The correct answer is 3rd because Earth is the third planet from the Sun in our solar system.

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  • 8. 

    What type of planet is Pluto?

    • A.

      A planet where life exists

    • B.

      Ninth Planet

    • C.

      Red Planet

    • D.

      Dwarf Planet

    Correct Answer
    D. Dwarf Planet
    Explanation
    Pluto is classified as a dwarf planet. This is because it does not meet the criteria to be considered a full-fledged planet. In 2006, the International Astronomical Union redefined the definition of a planet and Pluto did not meet all the requirements. It is smaller than the other planets in our solar system and its orbit overlaps with that of Neptune. Therefore, it is now classified as a dwarf planet.

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  • 9. 

    Jupiter, Saturn, Uranus, and Neptune are __________  ___________.

    • A.

      Biggest Planets

    • B.

      Inner Planets

    • C.

      Outer Planets

    • D.

      Smallest Planets

    Correct Answer
    C. Outer Planets
    Explanation
    Jupiter, Saturn, Uranus, and Neptune are referred to as the outer planets because they are located beyond the asteroid belt in our solar system. These planets are much larger in size compared to the inner planets, Earth, Mars, Venus, and Mercury. They are also known as gas giants, as they are primarily composed of hydrogen and helium gases. These outer planets have thick atmospheres and are characterized by their ring systems and numerous moons.

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  • 10. 

    Which planet rotates the slowest in the solar system?

    • A.

      Mars

    • B.

      Venus

    • C.

      Neptune

    • D.

      Uranus

    Correct Answer
    B. Venus
    Explanation
    Venus rotates the slowest in the solar system because it has a very long day. It takes Venus approximately 243 Earth days to complete one rotation on its axis, making it the slowest rotating planet. This slow rotation also means that Venus has a very long year, as it takes about 225 Earth days to orbit around the Sun.

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  • 11. 

    Galileo was the first astronomer to use a ________________ to study the stars and planets.

    • A.

      Radio telescope

    • B.

      Binocular

    • C.

      Telescope

    • D.

      Microscope

    Correct Answer
    C. Telescope
    Explanation
    Galileo was the first astronomer to use a telescope to study the stars and planets. A telescope is an optical instrument that magnifies distant objects, allowing for a closer and clearer observation. Galileo's use of the telescope revolutionized astronomy by enabling him to make groundbreaking discoveries, such as the moons of Jupiter and the phases of Venus. This invention significantly advanced our understanding of the universe and laid the foundation for modern astronomy.

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  • 12. 

    What is NASA (related to space exploration) stands for?

    • A.

      Navigation Astronaut Space Agency

    • B.

      National Aeronautics and Space Administration

    • C.

      National Auto Sport Association

    • D.

      Near Aerodynamic Space Administration

    Correct Answer
    B. National Aeronautics and Space Administration
    Explanation
    NASA stands for National Aeronautics and Space Administration. It is the United States government agency responsible for the nation's civilian space program and for aeronautics and aerospace research.

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  • 13. 

    Which of the following objects does NOT travel around the Sun?

    • A.

      Comets

    • B.

      Asteroids

    • C.

      Moons

    • D.

      Earth

    Correct Answer
    C. Moons
    Explanation
    Moons do not travel around the Sun. Moons are natural satellites that orbit around planets, not the Sun. Comets, asteroids, and the Earth all orbit the Sun. Comets are icy bodies that orbit the Sun in highly elliptical paths, while asteroids are rocky objects that also orbit the Sun. The Earth is a planet that revolves around the Sun in a nearly circular orbit.

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  • 14. 

    A shooting star is really a ____________

    • A.

      Galaxy

    • B.

      Meteor

    • C.

      Star

    • D.

      Planet

    Correct Answer
    B. Meteor
    Explanation
    A shooting star is actually a meteor. When a meteoroid, a small rocky or metallic object, enters the Earth's atmosphere and burns up, it creates a streak of light in the sky. This phenomenon is commonly referred to as a shooting star. While galaxies, stars, and planets are celestial objects, they do not produce the same visual effect as a shooting star.

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  • 15. 

    A space object that actually enters the Earth's atmosphere and not being burnt up and makes it to the Earth.

    • A.

      Meteorite

    • B.

      Meteoroid

    • C.

      Meteor

    • D.

      Asteroid

    Correct Answer
    A. Meteorite
    Explanation
    A meteorite is a space object that enters the Earth's atmosphere and survives the intense heat caused by friction, allowing it to reach the Earth's surface. Unlike meteoroids, which burn up in the atmosphere, meteorites are able to withstand the heat and impact the Earth. This distinguishes them from meteors, which are the streaks of light caused by meteoroids burning up in the atmosphere, and asteroids, which are larger space objects that orbit the Sun.

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  • 16. 

    How many Planets are there in our Solar System?

    • A.

      Three

    • B.

      Five

    • C.

      Nine

    • D.

      Eight

    Correct Answer
    D. Eight
    Explanation
    There are eight planets in our solar system. These planets include Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto, which was once considered the ninth planet, was reclassified as a dwarf planet in 2006. Therefore, the correct answer is eight.

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  • 17. 

    What are planets named after?

    • A.

      Scientists

    • B.

      Gods and goddesses

    • C.

      Cartoon characters

    • D.

      Sports players

    Correct Answer
    B. Gods and goddesses
    Explanation
    Planets are named after gods and goddesses because in ancient times, people believed that celestial bodies were divine beings. The tradition of naming planets after mythological figures dates back to the time of ancient civilizations such as the Greeks and Romans. For example, the planet Mercury is named after the Roman god of communication and travel, while Venus is named after the Roman goddess of love and beauty. This naming convention continues to be used today, connecting us to our historical and cultural roots.

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  • 18. 

    What are moons?

    • A.

      Space probes

    • B.

      Natural satellites

    • C.

      Space rocks

    • D.

      Dwarf planets

    Correct Answer
    B. Natural satellites
    Explanation
    Moons are natural satellites that orbit around planets or other celestial bodies. They are not space probes, which are man-made spacecraft sent to explore space. Moons are also not space rocks, as they are not just chunks of rock floating in space. While some moons may orbit around dwarf planets, not all moons are dwarf planets themselves. Therefore, the correct answer is natural satellites.

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  • 19. 

    Which is the planet with the most number of moons?

    • A.

      Jupiter

    • B.

      Venus

    • C.

      Neptune

    • D.

      Uranus

    Correct Answer
    A. Jupiter
    Explanation
    Jupiter is the planet with the most number of moons. It has a total of 79 known moons, making it the planet with the highest number of natural satellites. These moons vary in size, with the four largest ones known as the Galilean moons: Io, Europa, Ganymede, and Callisto. Jupiter's strong gravitational pull allows it to capture and retain a large number of moons, making it the clear answer to this question.

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  • 20. 

    Which planet is known as the "Evening Star"?

    • A.

      Mars

    • B.

      Venus

    • C.

      Saturn

    • D.

      Mercury

    Correct Answer
    B. Venus
    Explanation
    Venus is known as the "Evening Star" because it is often visible in the evening sky shortly after sunset. It is one of the brightest objects in the night sky and can be easily seen without the need for a telescope. Venus is often referred to as the "Evening Star" because it is most commonly seen in the western sky after sunset, although it can also be seen in the morning sky before sunrise, where it is then referred to as the "Morning Star".

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  • 21. 

    Which planet has the hottest?

    • A.

      Mercury

    • B.

      Venus

    • C.

      Jupiter

    • D.

      Uranus

    Correct Answer
    B. Venus
    Explanation
    Venus is the correct answer because it has the hottest surface temperature of any planet in our solar system. This is due to its thick atmosphere, which is composed mainly of carbon dioxide and creates a strong greenhouse effect. The greenhouse effect traps heat from the Sun, causing Venus to have an average temperature of about 900 degrees Fahrenheit (475 degrees Celsius), making it hotter than Mercury, despite being further away from the Sun.

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  • 22. 

    Which planet has no atmosphere that ends up with lots of craters?

    • A.

      Earth

    • B.

      Venus

    • C.

      Mars

    • D.

      Mercury

    Correct Answer
    D. Mercury
    Explanation
    Mercury is the correct answer because it is a planet that has no atmosphere. Without an atmosphere to protect it, Mercury is exposed to impacts from space debris, resulting in the formation of numerous craters on its surface.

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  • 23. 

    This is located between Mars and Jupiter. It contains thousands of celestial bodies.

    • A.

      Asteroid belt

    • B.

      Comet

    • C.

      Meteorite

    • D.

      Dwarf planets

    Correct Answer
    A. Asteroid belt
    Explanation
    The correct answer is asteroid belt. The asteroid belt is a region located between the planets Mars and Jupiter in our solar system. It is composed of thousands of small celestial bodies, primarily asteroids, which orbit the Sun. These asteroids vary in size and composition, ranging from small rocky fragments to larger bodies several hundred kilometers in diameter. The asteroid belt is believed to be the remnants of a failed planet formation process, where the gravitational forces of Jupiter prevented the asteroids from coalescing into a single planet.

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  • 24. 

    The terrestrial planets are composed of which of the following elements.

    • A.

      Water and ice

    • B.

      Hydrogen and Helium

    • C.

      Iron and Titanium

    • D.

      Rock and Metal

    Correct Answer
    D. Rock and Metal
    Explanation
    The correct answer is "Rock and Metal." Terrestrial planets, such as Earth, Mars, Venus, and Mercury, are primarily composed of solid materials like rock and metal. These planets have a solid surface and are made up of elements like silicon, oxygen, iron, and magnesium. Water and ice are found mainly in the form of ice caps or underground reservoirs on these planets, but they do not constitute the primary composition of terrestrial planets. Hydrogen and Helium are the main elements found in gas giants like Jupiter and Saturn, while Iron and Titanium are specific elements and not the primary composition of terrestrial planets.

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  • 25. 

    Which is the correct order of celestial bodies (space objects) from the biggest to the smallest?

    • A.

      Solar System, Sun, Universe, Planet, Moon, Galaxy

    • B.

      Universe, Galaxy, Solar System, Sun, Planet, Moon

    • C.

      Universe, Solar System, Galaxy, Sun, Moon, Planet

    • D.

      Galaxy, Solar System, Universe, Moon, Sun, Planet

    Correct Answer
    B. Universe, Galaxy, Solar System, Sun, Planet, Moon
    Explanation
    The correct order of celestial bodies from the biggest to the smallest is Universe, Galaxy, Solar System, Sun, Planet, Moon. The Universe is the largest, containing everything that exists. Galaxies are smaller than the Universe but still massive, containing billions of stars. Within a galaxy, the Solar System is a smaller system consisting of a star (Sun) and the objects that orbit it, including planets. The Sun is a star and the largest object within the Solar System. Planets are smaller than stars and orbit the Sun. Moons are natural satellites that orbit planets and are smaller than planets.

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  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 22, 2014
    Quiz Created by
    Edward Hung
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