Sky Science Grade 6 Quiz

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  • 1/10 Questions

    The sun is a star?

    • True
    • False
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About This Quiz

The solar system consists of planets that orbit around a star. This informative and interactive sky science unit test for grade 6 will help you understand the topic better. The moon and the star are both natural light sources for our planet, and we discussed them in full in the sky science class. Take the quiz below and jog your memory on what we covered before you sit for your exams. If you find the quiz helpful, share it with your friends and family. All the best!

Sky Science Grade 6 Quiz - Quiz

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  • 2. 

    What is a solar eclipse?

    • When the moon goes behind the earth

    • When the moon goes in between the earth and the sun.

    • When the moon goes behind the earth

    • None of the above

    Correct Answer
    A. When the moon goes in between the earth and the sun.
    Explanation
    A solar eclipse occurs when the moon aligns itself between the Earth and the sun, causing the moon to cast a shadow on the Earth's surface. This alignment blocks the sunlight from reaching certain parts of the Earth, resulting in a temporary darkening of the sky. This phenomenon can only occur during a new moon phase when the moon is positioned directly between the Earth and the sun.

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  • 3. 

    Pluto is a planet?

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The answer is false because Pluto is no longer classified as a planet. In 2006, the International Astronomical Union (IAU) redefined the definition of a planet and Pluto did not meet the new criteria. It is now considered a dwarf planet.

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  • 4. 

    What is the closest planet to the sun?

    • Venus

    • Uranus

    • Mercury

    • Mars

    Correct Answer
    A. Mercury
    Explanation
    Mercury is the closest planet to the sun. It is located just 36 million miles away from the sun, making it the closest planet in our solar system. Its close proximity to the sun means that it experiences extreme temperatures, with the surface reaching up to 800 degrees Fahrenheit during the day and dropping to -290 degrees Fahrenheit at night. Mercury is also the smallest planet in our solar system and has a very thin atmosphere.

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  • 5. 

    What is the hottest part of the sun?

    • Flares

    • Photosphere

    • Core

    • Prominences

    Correct Answer
    A. Core
    Explanation
    The core is the hottest part of the sun. It is the central region where nuclear fusion occurs, converting hydrogen into helium and releasing a tremendous amount of energy in the process. The temperature in the core can reach millions of degrees Celsius, making it the hottest part of the sun.

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  • 6. 

    What is the farthest planet to the sun?

    • Neptune

    • Mercury

    • Mars

    • Uranus

    Correct Answer
    A. Neptune
    Explanation
    Neptune is the farthest planet from the sun in our solar system. It is located about 2.7 billion miles away from the sun, making it the most distant planet. It takes Neptune approximately 165 Earth years to complete one orbit around the sun.

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  • 7. 

    How many planets are there?  

    • 2

    • 11

    • 9

    • 8

    Correct Answer
    A. 8
    Explanation
    There are eight planets in our solar system. These planets include Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto, which was previously considered the ninth planet, was reclassified as a dwarf planet in 2006.

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  • 8. 

    How many moon phases are there?

    • 4

    • 8

    • 6

    • 9

    Correct Answer
    A. 8
    Explanation
    There are 8 moon phases. The moon goes through a complete cycle, known as a lunar month, which takes approximately 29.5 days. During this cycle, the moon goes through different phases, including the new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, and waning crescent. Each phase represents a different amount of the moon's illuminated surface that is visible from Earth. Therefore, the correct answer is 8.

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  • 9. 

    What is nearest star to our solar system?

    • Alpha Centauri

    • Beta Cephei

    • Alnilam

    • Delta Cygni

    Correct Answer
    A. Alpha Centauri
    Explanation
    Alpha Centauri is the nearest star to our solar system. It is a triple star system located about 4.37 light-years away from Earth. It consists of three stars: Alpha Centauri A, Alpha Centauri B, and Proxima Centauri. Proxima Centauri is the closest of the three stars and is the closest known star to our solar system. It is located about 4.24 light-years away from Earth.

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  • 10. 

    What is a lunar eclipse?

    • When the sun goes in between the earth and the moon

    • When the moon goes behind the earth

    • When the moon goes in between the earth and the sun.

    • None of the above

    Correct Answer
    A. When the moon goes behind the earth
    Explanation
    A lunar eclipse occurs when the moon moves behind the Earth, causing the Earth to cast a shadow on the moon. This happens when the Earth is positioned between the sun and the moon, blocking the sunlight from reaching the moon. As a result, the moon appears to darken or take on a reddish hue during a lunar eclipse.

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  • Current Version
  • Oct 21, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 11, 2011
    Quiz Created by
    Chickenlegs123
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