8th Grade Science Quiz

17 Questions  I  By Hot2datxreme
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8th Grade Quizzes & Trivia
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  • 1. 
    Elements with atomic numbers higher than 92 are not natural but can be created by man or____________,by crashing nuclear particles into each other.
    • A. 

      Pounded

    • B. 

      Combined by radioactivity

    • C. 

      Synthesized

    • D. 

      A particle accelerator

    • E. 

      Compounded


  • 2. 
    All semimetals are solids at room temperature, however nonmetals tend to be ________.
    • A. 

      Liquids

    • B. 

      Gases

    • C. 

      Melting

    • D. 

      Decaying

    • E. 

      Solid but soon turn into gas


  • 3. 
    Which part of the periodic table are the diatomic molecules, or molecules that have two atoms found?
    • A. 

      Right

    • B. 

      They are scattered all over the periodic table

    • C. 

      Left

    • D. 

      They are not on the periodic table

    • E. 

      Undetermined


  • 4. 
    What is a beta particle?
    • A. 

      A fully charged particle with two protons and two neutrons.

    • B. 

      A particle that is broken into four slices and they recombine after photosyntisis.

    • C. 

      A fast moving electron that is given off from the nucleus during radioactive decay.

    • D. 

      The amount of particles total in an atom.


  • 5. 
    If a metal reacts violently with water it is most likely in group _____ of the periodic table.
    • A. 

      1

    • B. 

      7

    • C. 

      6

    • D. 

      17

    • E. 

      14


  • 6. 
    What are the elements in group 3-12 called?
    • A. 

      Atomic metals

    • B. 

      Alkaline earth metals

    • C. 

      Alkali metals

    • D. 

      Transition metals

    • E. 

      Semi metals


  • 7. 
    Most of the metals that surronund the zigzag line on the periodic table are?
    • A. 

      Semimetals

    • B. 

      Transition metals

    • C. 

      Alloys

    • D. 

      Acids

    • E. 

      Bases


  • 8. 
    What are  the major differences between the halogen family and the inert gases?
    • A. 

      Halogen is reactive inert gases are not

    • B. 

      They do not have any differences


  • 9. 
    True or False:sodium and potassium are the two most important alkali metals
    • A. 

      True

    • B. 

      False


  • 10. 
    True or False:the chemical symbol of an element is the number of neutrons the element has.
    • A. 

      True

    • B. 

      False


  • 11. 
    True or False:The atomic number is the number of protons an atom has.
    • A. 

      True

    • B. 

      False


  • 12. 
    True or False:nonmetals are bad conductors of electricity.
    • A. 

      True

    • B. 

      False


  • 13. 
    True or False:semiconductors can only conduct electricity under certain conditions.
    • A. 

      True

    • B. 

      False


  • 14. 
    Who's theory?Atoms cannot be created or destroyed in any chemical change but they can be rearranged.
    • A. 

      Charlse

    • B. 

      Mendeleev

    • C. 

      Rutherford

    • D. 

      Dalton

    • E. 

      Thompson


  • 15. 
    Which is in the correct order
    • A. 

      Democratis, dalton, rutherford, thompson, bhor, cloud, modern.

    • B. 

      Dalton, thompson, rutherford, bhor, cloud, modern, democratis.

    • C. 

      Democratis, dalton, thompson, rutherford, bhor, cloud, modern.

    • D. 

      Thompson, dalton, bhor, rurtherford, democratis, modern, cloud.

    • E. 

      None of the above


  • 16. 
    Which group of metals reacts violently with the metas from group one?
    • A. 

      14

    • B. 

      15

    • C. 

      3

    • D. 

      17

    • E. 

      3-12


  • 17. 
    Which is an example of a semiconductor?
    • A. 

      Rubber

    • B. 

      Silicon

    • C. 

      Plastic

    • D. 

      Wood


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