# 7th Grade Science Chapter 1 Test-matter

36 Questions  I  By Sinman

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## Questions and Answers

 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. Physical properties
 B. Stationary properties
 C. Gravitational properties
 D. Chemical 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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