Science 8- Benchmark III (23)

24 Questions | Total Attempts: 155

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Science 8- Benchmark III (23)

Final test to review for VA SOL test at end-of-year for 8th grade science. The student will review and prepare for objectives.


Questions and Answers
  • 1. 
    What is a "possible answer" to a science question?
    • A. 

      Data

    • B. 

      Scienctific investigation

    • C. 

      Hypothesis

    • D. 

      Experiment

  • 2. 
    What is the "lowest temperature" in any matter which all "molecular motion" would stop?
    • A. 

      Celcius scale

    • B. 

      Fahrenheit scale

    • C. 

      Kevin scale

    • D. 

      Absolute zero

  • 3. 
    What is the "rate of change" in "velocity"?
    • A. 

      Speed

    • B. 

      Acceleration

    • C. 

      Force

    • D. 

      Rate

  • 4. 
    What is any substance that "releases hydrogen ions (H+)" in a solution and tastes "sour"?
    • A. 

      Acid

    • B. 

      Base

    • C. 

      Neutral

    • D. 

      Lemon

  • 5. 
    What is the distance from the "midpoint of a wave" to a "crest or trough"?
    • A. 

      Wavelength

    • B. 

      Crest

    • C. 

      Amplitude

    • D. 

      Trough

  • 6. 
    What is the "building block" of all matter or the "smallest" particle of an element? 
    • A. 

      Compound

    • B. 

      Molecule

    • C. 

      Mixture

    • D. 

      Atom

  • 7. 
    What is the mass of one atom of an element which is "equal" to the number of "protons and neutrons" in the atom's nucleus?
    • A. 

      Atomic number

    • B. 

      Atomic mass

    • C. 

      Equation

    • D. 

      Symbol

  • 8. 
    What does the "number of protons" in the atom's nucleus represent?
    • A. 

      Top number

    • B. 

      Atomic mass

    • C. 

      Atomic number

    • D. 

      Bottom number

  • 9. 
    What is a chemical equation in which each side of the equation has the same number of atoms of each element?  
    • A. 

      Chemical formula

    • B. 

      Equation

    • C. 

      Balanced equation

    • D. 

      Chemical equation

  • 10. 
    What is any substance that releases "hydroxide ions (OH-)" in a solution and feels "slippery"?
    • A. 

      Acid

    • B. 

      Hydrogen

    • C. 

      Base

    • D. 

      Pond water

  • 11. 
    Which scienctist's atomic model had "orbiting electrons" shifting postion from one fixed energy level to another and was "three-dimensional"? 
    • A. 

      Dalton

    • B. 

      Rutherford

    • C. 

      Bohr

    • D. 

      Thompson

  • 12. 
    What is the temperature scale on which water freezes at 0 degrees celcius and boils at 100 degrees celcius?
    • A. 

      Fahrenheit scale

    • B. 

      Celsius scale

    • C. 

      Kelvin scale

    • D. 

      Thermometer

  • 13. 
    What type of "change" results in the formation of one or more "new substances"?
    • A. 

      Physical change

    • B. 

      Chemical property

    • C. 

      Chemical change

    • D. 

      Change of state

  • 14. 
    What is a "shorthand description" of a chemical reaction, using symbols, number, and formulas?
    • A. 

      Chemical formula

    • B. 

      Chemical equation

    • C. 

      Chemical change

    • D. 

      Chemical property

  • 15. 
    What is the "path" through which "electric current" can flow?
    • A. 

      Current

    • B. 

      Circuit

    • C. 

      AC

    • D. 

      DC

  • 16. 
    What is a substance composed of "two or more elements" chemically joined in a "fixed proportion"?
    • A. 

      Compound

    • B. 

      Mixture

    • C. 

      Suspension

    • D. 

      Alloy

  • 17. 
    What is a mirror curving "inward" or is rays are divergent (spreading out)?  
    • A. 

      Convex

    • B. 

      Plane

    • C. 

      Concave

    • D. 

      Angle of incidence

  • 18. 
    What is an interpretation based on research, experience, and data?
    • A. 

      Hypothesis

    • B. 

      Observation

    • C. 

      Conclusion

    • D. 

      Data

  • 19. 
    What is a "change of matter" from a "gas to a liquid"?
    • A. 

      Condensation

    • B. 

      Sublimation

    • C. 

      Vaporization

    • D. 

      Evaporation

  • 20. 
    What is the transfer of "thermal energy" from particle to particle through "direct" contact?                                           
    • A. 

      Convection

    • B. 

      Combustibility

    • C. 

      Diffraction

    • D. 

      Conduction

  • 21. 
    What is a "material" that allows "heat or electric charges" to flow through it easily?
    • A. 

      Insulator

    • B. 

      Conductor

    • C. 

      Circuit

    • D. 

      Current

  • 22. 
    What is the "transfer" of thermal energy by the "circulation" of a fluid? (Remember air (gas) and liquid is  also considered a "fluid" in science).                             
    • A. 

      Convection

    • B. 

      Conduction

    • C. 

      Insulator

    • D. 

      Conductor

  • 23. 
    What is a mirror that has a "curving outward" shape  or "convergent rays (coming to a point)?                      
    • A. 

      Concave

    • B. 

      Triangle

    • C. 

      Plane

    • D. 

      Convex

  • 24. 
    What is the "mass" of a substance per unit of "volume"?
    • A. 

      Volume

    • B. 

      Density

    • C. 

      Distance

    • D. 

      Speed