Chemistry Quiz For 6th Grade Student

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Chemistry Quiz For 6th Grade Student - Quiz

Elements are the building blocks for all the rest of the matter in the world. The periodic table arranges the chemical elements by their atomic number, electron configurations, and recurring chemical properties. Test your understanding of the elements by taking this comprehensive quiz. All the best and share your results!


Questions and Answers
  • 1. 

    _______________ are substances that cannot be reduced by chemical change.

    Explanation
    Elements are substances that cannot be reduced by chemical change because they are made up of atoms that have a specific number of protons, neutrons, and electrons. These atoms are the building blocks of matter and cannot be broken down into simpler substances by chemical reactions. Therefore, elements are the fundamental substances that cannot be further reduced or broken down into other substances through chemical means.

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  • 2. 

    Elements are made of tiny _______ called atoms.

    Explanation
    The question asks for a term that describes the small components that make up elements. The word "particles" fits this description as it refers to small units or fragments. Therefore, it can be inferred that elements are made up of tiny particles called atoms.

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  • 3. 

    Elements are made up of tiny particles called ______.

    Explanation
    Atoms are the fundamental building blocks of all elements. They are the smallest unit of matter that retains the chemical properties of an element. Atoms combine together to form molecules and compounds. Each atom consists of a nucleus containing protons and neutrons, surrounded by electrons in energy levels. The concept of atoms was first proposed by ancient Greek philosophers and later developed through scientific experiments and theories. Therefore, atoms are the correct answer to the question.

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  • 4. 

    During chemical reactions do atoms change into a new substance?

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    During chemical reactions, atoms are rearranged to form new substances, but the atoms themselves do not change into a different type of atom or new substance. They retain their identity and are simply reconfigured into new molecules or compounds.

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  • 5. 

    What sciententi came up with the periodic table?

    • A.

      Severo Ochoa

    • B.

      Neils Bohr

    • C.

      John Falton

    • D.

      Mendeleev

    Correct Answer
    D. Mendeleev
    Explanation
    Mendeleev is the correct answer because he is the scientist who is credited with creating the periodic table. In 1869, Mendeleev organized the known elements based on their atomic mass and properties, and he left gaps for undiscovered elements. His periodic table was a significant breakthrough in chemistry and has been the foundation for understanding the properties and relationships of elements ever since.

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  • 6. 

    What scientist was the first to propose that all matter is made up of atoms?

    Correct Answer
    john dalton
    Dalton
    Explanation
    John Dalton was the first scientist to propose that all matter is made up of atoms. He developed the atomic theory in the early 19th century, which stated that all elements are composed of tiny indivisible particles called atoms. Dalton's theory revolutionized the understanding of matter and laid the foundation for modern chemistry. His work paved the way for further discoveries and advancements in the field of atomic structure.

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  • 7. 

    A nucleus of an atom can have a negative charge.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    the nucleus of an atom ALWAYS has a positive charge

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  • 8. 

    The most abundant element on earth is _____________.

    Correct Answer
    Oxygen
    Explanation
    The most abundant element on Earth is oxygen. Oxygen makes up approximately 46% of the Earth's crust by weight, primarily in the form of oxides such as silicon dioxide (silica) and aluminum oxide (alumina). Additionally, oxygen is a major component of Earth's atmosphere, comprising about 21% of its volume.

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  • 9. 

    When two or more atoms join together from the same or different elements we call this a ______

    • A.

      Compound

    • B.

      Chemical reaction

    • C.

      Molecule

    • D.

      Particle

    Correct Answer
    C. Molecule
    Explanation
    When two or more atoms join together from the same or different elements, they form a molecule. A molecule is a stable unit of atoms held together by chemical bonds. It can be made up of atoms of the same element or different elements. In a compound, atoms of different elements are also joined together, but a compound refers specifically to a substance formed by the chemical combination of two or more elements. A chemical reaction, on the other hand, refers to the process in which substances undergo a chemical change, resulting in the formation of new substances. A particle is a general term that can refer to any small piece or unit of matter.

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  • 10. 

    What so we call molecules made up of atoms of different elements?

    Correct Answer
    compound
    compounds
    coumpound
    Explanation
    Molecules made up of atoms of different elements are called compounds. Compounds are formed when atoms of different elements chemically combine together in specific ratios. The correct spelling of the word is "compound" and its plural form is "compounds". The option "coumpound" seems to be a misspelling.

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  • Current Version
  • Jun 05, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jul 26, 2012
    Quiz Created by
    Rainnn79
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