7th Grade Science Chapter 1 Test-Matter
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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.
- 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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