Solar System Practice Test Questions!

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Solar System Practice Test Questions! - Quiz


Questions and Answers
  • 1. 

    The sun is a _______, not a planet

    Explanation
    The given statement implies that the sun is not classified as a planet, but rather as a star. Stars are celestial bodies that emit light and heat due to nuclear reactions happening in their cores. The sun, being a star, falls under this category as it emits light and heat, enabling life on Earth. Planets, on the other hand, are celestial bodies that orbit around stars and do not emit light or heat of their own. Therefore, the correct answer is "star."

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  • 2. 

    List the names of first five planets starting from the closest to the sun. (Separate each name by a comma. For example: A, B, C, D, E)

    Explanation
    The first five planets starting from the closest to the sun and working outward are Mercury, Venus, Earth, Mars, and Jupiter.

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  • 3. 

    List the planet with the ring.

    Explanation
    The planets in our solar system that have rings are:
    Jupiter: It has faint, dusty rings.
    Saturn: Known for its majestic, icy rings. It has the most visible and spectacular ring system in the solar system.
    Uranus: It has dark, narrow rings.
    Neptune: It has reddish, clumpy rings.
    Each of these planets has its own unique ring system. These rings are composed of dust, ice, and other particles that orbit around the planet. Please note that the visibility and composition of these rings can vary greatly from one planet to another. 

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  • 4. 

    Which of the following planets is surrounded by thick clouds that trap energy from the sun, making the planet incredibly warm

    • A.

      Jupiter

    • B.

      Venus

    • C.

      Mars

    • D.

      Saturn

    Correct Answer
    B. Venus
    Explanation
    Venus is surrounded by thick clouds that trap energy from the sun, creating a greenhouse effect. This causes the planet to have an incredibly high temperature, making it the hottest planet in our solar system.

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  • 5. 

    The sun gives off ___________ and light

    Correct Answer
    heat, Heat, warmth , Warmth, Radiation, radiation
    Explanation
    The sun emits heat and light as a result of the nuclear fusion reactions happening in its core. These reactions generate immense amounts of energy, which is released in the form of heat and light. The heat from the sun is responsible for warming the Earth's surface and creating the conditions necessary for life to exist. Additionally, the light from the sun provides energy for photosynthesis, which is the process by which plants convert sunlight into chemical energy.

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  • 6. 

    On earth, temperatures allow for water to exist in how many phases?

    • A.

      One

    • B.

      Two

    • C.

      Three

    • D.

      Six

    Correct Answer
    C. Three
    Explanation
    Water can exist in three phases on Earth due to the range of temperatures. These phases include solid (ice), liquid (water), and gas (water vapor). The temperature determines which phase water will be in, with lower temperatures causing water to freeze into ice and higher temperatures causing it to evaporate into water vapor. Therefore, the correct answer is three.

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  • 7. 

    This planet has seasons and an atomosphere and is a reddish color

    • A.

      Earth

    • B.

      Uranus

    • C.

      Mars

    • D.

      Nepture

    Correct Answer
    C. Mars
    Explanation
    Mars is the correct answer because it is known to have seasons and an atmosphere. Additionally, Mars is often referred to as the "Red Planet" due to its reddish appearance, which is caused by iron oxide (rust) on its surface. While other planets in the list may have atmospheres, only Mars fits the description of having seasons and a reddish color.

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  • 8. 

    The distance from Earth to the sun is _____ astronomical unit

    Correct Answer
    one, 1
    Explanation
    The distance from Earth to the sun is commonly measured in astronomical units (AU). An astronomical unit is defined as the average distance between the Earth and the sun, which is approximately 93 million miles or 150 million kilometers. Therefore, the correct answer is "one, 1" astronomical unit.

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  • 9. 

    This planet has rings of ice

    • A.

      Saturn

    • B.

      Jupiter

    • C.

      Uranus

    • D.

      Sun

    Correct Answer
    A. Saturn
    Explanation
    Saturn is the correct answer because it is the only planet in our solar system known to have prominent rings made of ice particles. These rings are made up of countless small particles ranging in size from micrometers to meters and are composed mostly of water ice with traces of rocky material. The other options, Jupiter, Uranus, and the Sun, do not have visible rings of ice.

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  • 10. 

    Planets in the _________ system orbit the sun

    Correct Answer
    solar
    Explanation
    The given correct answer is "solar". This is because the word "solar" refers to the sun, and the question is asking about the system in which planets orbit the sun. Therefore, the planets in the solar system orbit the sun.

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  • 11. 

    The sun's energy is produced where?

    • A.

      Its surface

    • B.

      Across the whole body

    • C.

      The core

    • D.

      In a small factory run by tiny sun people

    Correct Answer
    C. The core
    Explanation
    The sun's energy is produced in its core. The core is the central region of the sun where nuclear fusion reactions occur. These reactions involve the fusion of hydrogen atoms to form helium, releasing a tremendous amount of energy in the process. This energy then radiates outwards, eventually reaching the sun's surface and being emitted as light and heat.

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  • 12. 

    Uranus  _______is tilted to be almost even with the plane of its orbit.

    Correct Answer
    axis
    Explanation
    Uranus' axis is tilted to be almost even with the plane of its orbit. This means that the imaginary line around which Uranus rotates is nearly parallel to the plane in which it orbits the Sun. This unique characteristic of Uranus is responsible for its extreme seasons, as different parts of the planet receive varying amounts of sunlight throughout its orbit.

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  • 13. 

    This is the largest planet

    • A.

      Earth

    • B.

      Venus

    • C.

      Saturn

    • D.

      Jupiter

    Correct Answer
    D. Jupiter
    Explanation
    Jupiter is the correct answer because it is widely known as the largest planet in our solar system. It has a diameter of about 143,000 kilometers, more than 11 times the diameter of Earth. It also has a massive gravitational pull, which is another characteristic of its large size. Additionally, Jupiter is easily visible from Earth and can be seen with the naked eye in the night sky, further emphasizing its size and prominence.

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  • 14. 

    What makes give Neptune it's blue-green color

    Correct Answer
    Explanation
    Neptune's blue-green color is caused by the presence of methane in its atmosphere. Methane absorbs red light and reflects blue and green light, giving the planet its distinct color. The methane molecules in the atmosphere scatter the sunlight, causing the blue and green wavelengths to be more visible to our eyes. This unique composition of gases in Neptune's atmosphere is responsible for its striking coloration.

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  • 15. 

    Frozen dust and gases with bright burning tails

    • A.

      Asteroid

    • B.

      Comet

    • C.

      Meteor

    • D.

      Meteoroid

    • E.

      Meterorite

    Correct Answer
    B. Comet
    Explanation
    Comets are celestial bodies composed of frozen gases, dust, and rocky materials. When a comet approaches the Sun, the heat causes the frozen gases to vaporize, creating a glowing coma (bright burning tail) around the nucleus. This distinctive feature sets comets apart from other options like asteroids, meteoroids, meteors, and meteorites, which do not typically exhibit bright burning tails.

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  • 16. 

    Scientists have recently determined this to be too small to be a planet

    • A.

      Venus

    • B.

      Mercury

    • C.

      Pluto

    • D.

      Earth

    Correct Answer
    C. Pluto
    Explanation
    Pluto is the correct answer because scientists have determined it to be too small to be classified as a planet. In 2006, the International Astronomical Union redefined the definition of a planet, and Pluto did not meet the new criteria. It is now classified as a dwarf planet.

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  • 17. 

    Dust and rock found in space

    • A.

      Asteroid

    • B.

      Comet

    • C.

      Meteor

    • D.

      Meteoroid

    • E.

      Meteorite

    Correct Answer
    D. Meteoroid
    Explanation
    A meteoroid is a small rocky or metallic object that is found in space. It is smaller than an asteroid and is typically composed of dust and rock. When a meteoroid enters the Earth's atmosphere and burns up, it is called a meteor. If a meteoroid survives its journey through the atmosphere and lands on Earth's surface, it is called a meteorite. Therefore, a meteoroid is the correct answer as it refers to the dust and rock found in space before it enters the Earth's atmosphere.

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  • 18. 

    Pieces of iron, nickel, stone or a combination that orbit the sun

    • A.

      Asteroid

    • B.

      Comet

    • C.

      Meteor

    • D.

      Meteoroid

    • E.

      Meteorite

    Correct Answer
    A. Asteroid
    Explanation
    An asteroid is a piece of iron, nickel, stone, or a combination of these materials that orbits the sun. Unlike comets, asteroids do not have a tail and are made up of rocky and metallic materials. They are remnants from the early formation of the solar system and can vary in size, ranging from small boulders to large objects several hundred kilometers in diameter. Asteroids can be found in the asteroid belt, a region between Mars and Jupiter, as well as in other parts of the solar system.

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  • 19. 

    Burning rock or dust in Earth's atmosphere

    • A.

      Asteroid

    • B.

      Comet

    • C.

      Meteor

    • D.

      Meteoroid

    • E.

      Meteorite

    Correct Answer
    C. Meteor
    Explanation
    A meteor is the correct answer because it refers to a small celestial body that enters Earth's atmosphere and burns up, creating a streak of light. This phenomenon is commonly known as a shooting star. The other options, such as asteroid, comet, meteoroid, and meteorite, are related to celestial bodies but do not specifically describe the burning rock or dust in Earth's atmosphere.

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  • 20. 

    Meteor that hits the ground

    • A.

      Asteroid

    • B.

      Comet

    • C.

      Meteor

    • D.

      Meteoroid

    • E.

      Meteorite

    Correct Answer
    E. Meteorite
    Explanation
    A meteorite is the correct answer because it refers to a meteoroid that survives its passage through the Earth's atmosphere and lands on the Earth's surface. When a meteoroid enters the Earth's atmosphere, it is called a meteor, and if it reaches the ground without burning up completely, it becomes a meteorite. Therefore, a meteorite is a meteor that hits the ground.

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  • 21. 

    The spots on Jupitor are _________

    Correct Answer
    storm, storms
    Explanation
    The correct answer is "storm, storms" because Jupiter is known for its turbulent atmosphere, which is characterized by large, swirling storms. These storms create distinct spots on the surface of the planet, such as the famous Great Red Spot. The plural form "storms" is also included in the correct answer to account for the possibility of multiple storms occurring simultaneously on Jupiter.

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  • 22. 

    The rings around Saturn are made of _________

    Correct Answer
    ice
    Explanation
    Saturn's rings are made primarily of ice particles, along with some rocky material. These particles range in size from tiny grains to larger chunks. The ice is mostly composed of water, but it also contains other volatile substances like methane, ammonia, and carbon dioxide. The ice particles reflect sunlight, giving the rings their bright appearance. The presence of ice in the rings has been confirmed through various observations and measurements, including spacecraft missions like Voyager and Cassini.

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  • 23. 

    Which planet has a big red spot that is a giant storm?

    • A.

      Saturn

    • B.

      Mars

    • C.

      Neptune

    • D.

      Jupiter

    Correct Answer
    D. Jupiter
    Explanation
    Jupiter is the correct answer because it is the planet that has a big red spot that is a giant storm. The Great Red Spot is a massive storm that has been raging on Jupiter for hundreds of years. It is a prominent feature of the planet and is easily visible from Earth. Saturn, Mars, and Neptune do not have a similar storm like Jupiter's Great Red Spot.

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  • 24. 

    If Earth was closer to the sun, it would be too _____ for life

    • A.

      Hot

    • B.

      Cold

    Correct Answer
    A. Hot
    Explanation
    If Earth was closer to the sun, it would be too hot for life. The proximity to the sun would result in increased solar radiation and higher temperatures, which could lead to extreme heat and make it difficult for life forms to survive. The heat would likely cause water to evaporate rapidly, leading to a lack of water sources and making it challenging for organisms to thrive. Additionally, the intense heat could also damage the Earth's atmosphere and disrupt the balance of ecosystems.

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  • 25. 

    From what does the Earth's atmosphere shield us, enabling us to sustain life? (Choose all that apply)

    • A.

      UV rays

    • B.

      Rain

    • C.

      Asteroids

    • D.

      Comets

    Correct Answer(s)
    A. UV rays
    C. Asteroids
    Explanation
    The Earth's atmosphere protects us from harmful UV rays emitted by the sun, which can cause skin damage and increase the risk of skin cancer. Additionally, the atmosphere acts as a shield against asteroids, preventing them from reaching the Earth's surface and causing catastrophic damage. Rain and comets are not directly protected against by the atmosphere, so they are not correct answers.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Apr 05, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 18, 2009
    Quiz Created by
    Cbcbblock
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