7th Grade Science Chapter 1 Test-matter

36 Questions  I  By Sinman
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  • 1. 
    Which of these is NOT matter?
    • A. 

      A cloud

    • B. 

      Your hair

    • C. 

      Sunshine

    • D. 

      The sun


  • 2. 
    You accidentally break your pencil in half. This is an example of:
    • A. 

      A physical change

    • B. 

      A chemical change

    • C. 

      Density

    • D. 

      Weight


  • 3. 
    Which of the following statements about density is TRUE?
    • A. 

      Density depends on mass and volume

    • B. 

      Density is weight per unit volume

    • C. 

      Density is measured in millimeters

    • D. 

      Density is a chemical property


  • 4. 
    Inertia increases as _____________ increases.
    • A. 

      Time

    • B. 

      Length

    • C. 

      Mass

    • D. 

      Volume


  • 5. 
    An amount of vinegar would be expressed in ______________ for scientific experiments. 
    • A. 

      Centimeters or meters

    • B. 

      Grams or milligrams

    • C. 

      Liters or milliliters

    • D. 

      Ounces or gallons


  • 6. 
    During physical changes, matter always retains its:
    • A. 

      Size

    • B. 

      Identity (same type of particles)

    • C. 

      State

    • D. 

      Texture


  • 7. 
    One way to compare the densities of oil and water is to pur the liquids into a glass container and observe how they:
    • A. 

      Change color

    • B. 

      Evaporate quickly

    • C. 

      Separate into layers

    • D. 

      Create an odor


  • 8. 
    The amount of space taken up by an object is knows as the objects:
    • A. 

      Mass

    • B. 

      Weight

    • C. 

      Inertia

    • D. 

      Volume


  • 9. 
    When a canoe overturns, a pocket of air forms inside the canoe because air:
    • A. 

      Has volume

    • B. 

      Takes up space even though it's invisible

    • C. 

      Is matter

    • D. 

      All of the above


  • 10. 
    To measure the volume of water correctly, read the scale on a graduated cylinder at the _______________ part of the meniscus.
    • A. 

      Bottom

    • B. 

      Outer

    • C. 

      Top

    • D. 

      None of the above


  • 11. 
    Weight and ______________ are the same thing.
    • A. 

      Mass

    • B. 

      Volume

    • C. 

      Inertia

    • D. 

      None of the above


  • 12. 
    If you know the volume of the container a gas is in, then you know the ____________ of the gas.
    • A. 

      Mass

    • B. 

      Volume

    • C. 

      Weight

    • D. 

      Inertia


  • 13. 
    Over time, you can expect the amount of mass to change in a:
    • A. 

      Bowling ball

    • B. 

      Child

    • C. 

      Table

    • D. 

      Nail


  • 14. 
    Gravity affects an objects:
    • A. 

      Weight

    • B. 

      Mass

    • C. 

      Volume

    • D. 

      Density


  • 15. 
    Which of the following best describes weight?
    • A. 

      A measure of the amount of matter in an object

    • B. 

      The same as mass

    • C. 

      Weight is different depending on where the object is in the Universe

    • D. 

      Expressed in kilograms


  • 16. 
    The weight of an object depends on:
    • A. 

      The mass of the object

    • B. 

      The mass of Earth

    • C. 

      The distance between the object and Earth

    • D. 

      All of the above


  • 17. 
    Tom's 7-year-old brother is more difficult to pick up than his 2-year-old sister because:
    • A. 

      His brother has more inertia

    • B. 

      His sister has more inertia

    • C. 

      Boys are always heavier than girls

    • D. 

      His brother has less mass than his sister


  • 18. 
    Which of the following is an example of a physical change:
    • A. 

      A silver spoon tarnishing

    • B. 

      A cake baking in an oven

    • C. 

      A popsicle melting

    • D. 

      A car rusting


  • 19. 
    The melting of butter when it is left out in a warm room is an example of:
    • A. 

      A physical change

    • B. 

      A chemical change

    • C. 

      A physical property

    • D. 

      A chemical property


  • 20. 
    Although the Statue of Liberty is made of copper (originally an orange-brown color), it is green because the copper has interacted with substances in the air to form new substances with different properties. This is an example of:
    • A. 

      A physical change

    • B. 

      A chemical change

    • C. 

      A physical property

    • D. 

      A chemical property


  • 21. 
    Considering that gold is one of the densest substances on Earth, which would you rather carry around school in your backpack all day, a kilogram  of gold or a kilogram of feathers?
    • A. 

      Feathers, because your backpack would feel lighter

    • B. 

      Gold, because your backpack would feel lighter

    • C. 

      Gold, because it would take up less space in your backpack

    • D. 

      Feathers, because they would take up less space in your backpack


  • 22. 
    Precious metals in catalytic converters on cars change harmful carbon monoxide exhaust fumes to harmless ones. This is an exmple of a ______________ change.
    • A. 

      Physical

    • B. 

      Chemical

    • C. 

      Characteristic

    • D. 

      Both (a) and (c)


  • 23. 
    Color, odor, mass and volume are ________ of an object
    • A. 

      Chemical properties

    • B. 

      Physical properties

    • C. 

      Stationary properties

    • D. 

      Inertial properties


  • 24. 
    Flammability, solubility, and reactivity are ____________ of a substance.
    • A. 

      Chemical properties

    • B. 

      Physical properties

    • C. 

      Stationary properties

    • D. 

      Gravitational properties


  • 25. 
    Being able to burn wood is an example of wood's:
    • A. 

      Soluble properties

    • B. 

      Chemical properties

    • C. 

      Physical properties

    • D. 

      Ductile properties


  • 26. 
    Your weight expressed in SI (metric) units would be in:
    • A. 

      Newtons

    • B. 

      Pounds

    • C. 

      Liters

    • D. 

      Both (a) and (c)


  • 27. 
    A sponge and brick that are the same size have the same:
    • A. 

      Mass

    • B. 

      Volume (space)

    • C. 

      Weight

    • D. 

      Density


  • 28. 
    What is the density of a substance that has a mass of 25g and a volume of 5 cubic cm:
    • A. 

      5 g/cubic cm

    • B. 

      8 g/cubic cm

    • C. 

      30 g/cubic cm

    • D. 

      20 g/cubic cm


  • 29. 
    A 120g block of pinewood has a volume of 300 cubic cm. Would this block float on water? (HINT: water has  density of 1 g/cubic cm).
    • A. 

      No, because the block is more dense than water

    • B. 

      Yes, but a much larger block would not

    • C. 

      Yes, because the block is less dense than water

    • D. 

      Both (b) and (c)


  • 30. 
    How would you measure the volume of a screw?
    • A. 

      By placing it on a balance

    • B. 

      By multiplying its length by its width by its height

    • C. 

      By placing it on a spring scale

    • D. 

      By placing it in a graduated cylinder of water and seeing how much liquid it displaces.


  • 31. 
    A book has a length of 5cm, a width of 2cm, and a height of 5cm. What is it's volume?
    • A. 

      50cm

    • B. 

      12 cubic cm

    • C. 

      50 cubic cm

    • D. 

      2,500 cm


  • 32. 
    Which of the following has the MOST GRAVITATIONAL PULL on it?
    • A. 

      An elephant

    • B. 

      A bowling ball

    • C. 

      A golf ball

    • D. 

      A table tennis ball


  • 33. 
    Which of the following has the LEAST GRAVITATIONAL PULL on it?
    • A. 

      An elephant

    • B. 

      A bowling ball

    • C. 

      A golf ball

    • D. 

      A table tennis ball


  • 34. 
    Think of a can of pop.  Now, crush it. What are three PHYSICAL properties of the can?
    • A. 

      Shiny, crushed, metallic

    • B. 

      Crushed, rusts, metallic

    • C. 

      Shiny, crushed, rusts

    • D. 

      Crushed, rusts, smaller


  • 35. 
    What change caused the change in this can's appearance. (The one you just smashed).
    • A. 

      A physical change

    • B. 

      A chemical change


  • 36. 
    Can you tell what the chemical properties of the can are just by looking at the can?
    • A. 

      Yes

    • B. 

      No


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