Science 8 - Unit A Review

33 Questions | Total Attempts: 85

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Science 8 - Unit A Review

This is a unit review for Science 8 on Unit A: Mix and Flow of Matter.


Questions and Answers
  • 1. 
    (Section 1) WHIMIS stands for Workplace Hazardous Materials Information System.
    • A. 

      True

    • B. 

      False

  • 2. 
    (Section 1) Identify the following WHIMIS symbol:
    • A. 

      Toxic

    • B. 

      Explosive

    • C. 

      Flammable

  • 3. 
    (Section 1) Identify the following WHIMIS symbol:
    • A. 

      Toxic

    • B. 

      Corrosive

    • C. 

      Flammable

  • 4. 
    (Section 1) Identify the following WHIMIS symbol:
    • A. 

      Toxic

    • B. 

      Corrosive

    • C. 

      Biological

  • 5. 
    (Section 1) Which is NOT a reason fluids are useful?
    • A. 

      Fluids make it easier to use materials.

    • B. 

      Fluids make it easier to find materials.

    • C. 

      Fluids make it easier to process materials.

    • D. 

      Fluids make it easier to trasnport materials.

  • 6. 
    (Section 1) Toothpaste is an example of a fluid that can hold other materials.
    • A. 

      True

    • B. 

      False

  • 7. 
    (Section 1) Fluids are easy to move but do not take the shape of containers.
    • A. 

      True

    • B. 

      False

  • 8. 
    (Section 2) What is a pure substance?
    • A. 

      A substance that is made up of only one type of matter.

    • B. 

      A substance made up of a comination of different substances.

    • C. 

      None of the above.

  • 9. 
    (Section 2) Which of the following is an example of a mixture?
    • A. 

      Soil

    • B. 

      Sugar

    • C. 

      Baking soda

  • 10. 
    (Section 2) The difference between a mechanical mixture and a solution is that in a mechanical mixture you can see the different substances in the mixture but a solution looks like it is all one substance.
    • A. 

      True

    • B. 

      False

  • 11. 
    (Section 2) What is another word for for mechanical mixture?
  • 12. 
    (Section 2) The substance that dissolves is called the
  • 13. 
    (Section 2) The substance that does the dissolving is called the
  • 14. 
    (Section 2) What does solubility depend on?
    • A. 

      The temperature.

    • B. 

      The type of solute.

    • C. 

      The type of solvent.

    • D. 

      All of the above.

  • 15. 
    (Section 2) Which units is concentration usually measured in?
    • A. 

      G

    • B. 

      ML

    • C. 

      G/mL

    • D. 

      ML/g

  • 16. 
    (Section 2) The amount of solute dissolved in a specific amount of solvent is known as the solution's
  • 17. 
    (Section 2) Select which statements make up the Particle Model of Matter?
    • A. 

      All matter is made up of tiny particles.

    • B. 

      The particles have spaces between them.

    • C. 

      The particles have no spaces between them.

    • D. 

      The particles in matter may be repelled by each other.

    • E. 

      The particles in matter may be attracted by each other.

    • F. 

      The tiny particles of matter are always moving and vibrating.

  • 18. 
    (Section 3) What is the density of vegetable oil with a mass of 92g in a volume of 100mL?
    • A. 

      0.92g/mL

    • B. 

      0.92mL/g

    • C. 

      1.09g/mL

    • D. 

      1.09mL/g

  • 19. 
    (Section 3) What is the density of 326g of gold in a volume of 20mL?
    • A. 

      0.06g/mL

    • B. 

      0.06mL/g

    • C. 

      16.3g/mL

    • D. 

      16.3mL/g

  • 20. 
    (Section 3) Based on the graph below, what is the density of line 3 when it has a mass of 50g?
    • A. 

      2g/mL

    • B. 

      2mL/g

    • C. 

      0.5g/mL

    • D. 

      0.5mL/g

  • 21. 
    (Section 2) Based on the following graph, which line represents the substance with the greatest density?
    • A. 

      Line 1

    • B. 

      Line 2

    • C. 

      Line 3

  • 22. 
    (Section 3) When heat is added to a liquid, the particles slide and roll over each other more quickly.  This causes the liquid to flow more readily which means heating a liquid decreases its viscocisty.
    • A. 

      True

    • B. 

      False

  • 23. 
    (Section 3) What is the pressure if a force of 20N is applied to an area of 10m2?
    • A. 

      0.5 Pa

    • B. 

      2.0 Pa

    • C. 

      200 Pa

  • 24. 
    (Section 3) What is the pressure exerted on the inside of a can if the surface area of the can is 0.2m2 and the force is 10N?
    • A. 

      0.02 Pa

    • B. 

      2.0 Pa

    • C. 

      50.0 Pa

  • 25. 
    (Section 3) Iced tea is less viscous than ketchup.
    • A. 

      True

    • B. 

      False

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