Font size
S
M
L
XL
WorksheetsChapter 8 Part 2 test
Total questions: 121
Worksheet time: 2hrs 55mins
Name
Class
Date
1.
Why are metals useful for making electrical wire?
a)
Metals do not bend.
b)
Metals hold much heat.
c)
Metals are insulators.
d)
Metals are conductors.
2.
Which is NOT an insulator.
a)
Wool
b)
Plastic
c)
Copper
d)
Glass
3.
Something electricity can't move through is called a(n) ______.
a)
conductor
b)
wire
c)
shoe
d)
insulator
4.
What is a example of a conductor?
a)
wood
b)
metal
c)
rubber
d)
rock
5.
What is a example of a insulator?
a)
metal
b)
rubber
c)
water
6.
Water is a insulator.
a)
True
b)
False
7.
Rubber is a insulator.
a)
true
b)
false
8.
What are Conductors?
a)
A conductor is a material that allows electric charge to move through it as an electric current. Usually the charge is carried by electrons, and the conductor is a metal.
b)
an insulator
c)
an conductor
d)
A material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators. Compare conductor.
9.
What are insulators?
a)
A conductor is a material that allows electric charge to move through it as an electric current. Usually the charge is carried by electrons, and the conductor is a metal.
b)
An object that is really, really, really, and I mean really truely, awesome.
c)
A material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators. Compare conductor.
10.
Which is NOT an insulator.
a)
Wool
b)
Plastic
c)
Copper
d)
Glass
11.
Why are metals useful for making electrical wire?
a)
Metals do not bend.
b)
Metals hold much heat.
c)
Metals are insulators.
d)
Metals are conductors.
12.
What is the difference between a conductor and an insulator?
a)
An insulator allows electricity to flow through it easily and a conductor does not
b)
A conductor allows electricity to flow through it easily and an insulator does not.
c)
An insulator is magnetic and a conductor is not
d)
A conductor is magnetic and an insulator is not
13.
A conductor allows energy to easily pass by.
a)
True
b)
False
14.
A insulator does not let energy flow through easily
a)
True
b)
False
15.
Which one is a conductor?
a)
wood
b)
iron
c)
plastic spoon
d)
paper
16.
Which one is an insulator?
a)
Silver
b)
Copper
c)
Mechanical pencil
d)
plastic
17.
What is a conductor?
a)
a material that slows the transfer of heat
b)
a material that transfers heat easily
c)
a material that is fluffy
d)
a material that is temperature controlled
18.
What is a insulator?
a)
a material that slows the transfer of heat
b)
a material that transfers heat easily
c)
a material that is fluffy
d)
a material that is temperature controlled
19.
What is the BEST example of a conductor?
a)
A wooden block
b)
A ceramic mug
c)
A glass cup
d)
A metal bowl
20.
A jacket is a good example of an . . .
a)
Insulator
b)
Investigator
c)
Conductor
d)
Interrogator
21.
True or False: An insulator is a type of material that allows heat to escape from an object quickly.
a)
True
b)
False
22.
What is the BEST example of a conductor?
a)
A plastic spatula
b)
An aluminum pie plate
c)
A styrofoam cup
d)
A copper pan
23.
Rubber is a insulator.
a)
true
b)
false
24.
Heat always travels from ______________ to ____________ objects.
a)
hot to cold
b)
cold to hot
c)
cold to cold
d)
hot to hot
25.
What is NOT an example of an insulator in the kitchen?
a)
an oven mitt
b)
pots and pans
c)
wooden spoons
d)
a plastic measuring cup
26.
Mittens help keep your hands warm in winter because
a)
they are colorful
b)
they are fuzzy
c)
they are conductors
d)
they are insulators
27.
A material that lets electricity pass through it is called ...
a)
an electrical conductor
b)
an electrical insulator
c)
an electrical appliance
28.
A material that does NOT let electricity pass through it is called ...
a)
an electrical conductor
b)
an electrical insulator
c)
an electrical appliance
29.
Which of the following materials is an electrical conductor?
a)
silver
b)
silver-colored plastic
c)
cork
d)
rubber
30.
Which of the following materials is an electrical insulator?
a)
aluminum
b)
gold
c)
rubber
d)
steel
31.
In which circuit will the bulb or bulbs glow brightest?
a)
A simple circuit with one bulb and one battery
b)
A simple circuit with one bulb and two batteries
c)
A simple circuit with two bulbs and one battery
32.
Why is a bulb brighter when it is powered by two batteries rather than one?
a)
Because the flow of electricity in the circuit is less
b)
Because the flow of electricity in the circuit is the same
c)
Because the flow of electricity in the circuit is greater
33.
Ruby has connected two bulbs across two batteries in a series circuit. How can she make the bulbs dimmer?
a)
Replace one of the batteries with a section of wire
b)
Replace one of the batteries with a cork
c)
Replace one of the bulbs with a section of wire
34.
Ruby makes a complete simple circuit with one bulb and three batteries. The bulb lights for an instant and then goes out. Why?
a)
Not enough electricity flows around the circuit
b)
Too much electricity flows through the bulb's filament
c)
The batteries are dead
35.
Why is electrical wiring usually made from copper?
a)
Because copper is shiny
b)
Because copper conducts electricity
c)
Because copper is not magnetic
36.
Why is electrical wiring usually covered with a layer of plastic?
a)
To help electricity flow along the wire
b)
To make it look pretty
c)
To make it safe
37.
Why is electrical wiring usually made from copper?
a)
Because copper is shiny
b)
Because copper conducts electricity
c)
Because copper is not magnetic
38.
Why is electrical wiring usually covered with a layer of plastic?
a)
To help electricity flow along the wire
b)
To make it look pretty
c)
To make it safe
39.
Copper
a)
Insulator
b)
Conductor
40.
Plastic
a)
Insulator
b)
Conductor
41.
Glass
a)
Insulator
b)
Conductor
42.
Iron
a)
Insulator
b)
Conductor
43.
Cloth
a)
Insulator
b)
Conductor
44.
Gold
a)
Insulator
b)
Conductor
45.
Water
a)
Insulator
b)
Conductor
46.
Aluminum
a)
Insulator
b)
Conductor
47.
Sand
a)
Insulator
b)
Conductor
48.
Rubber
a)
Insulator
b)
Conductor
49.
Steel
a)
Insulator
b)
Conductor
50.
Wood
a)
Insulator
b)
Conductor
51.
Silver
a)
Insulator
b)
Conductor
52.
All of the following are conductors except _______.
a)
metal spoon
b)
wire
c)
iron nail
d)
plastic spoon
53.
Conductors are materials that...
a)
Allow heat to pass through
b)
Stop heat from passing through
c)
Allow cold to pass through
d)
Stop cold from passing through
54.
A great conductor of energy is:
a)
wood
b)
plastic
c)
metal
d)
cloth
55.
Is wood a conductor or insulator?
a)
Conductor
b)
Insulator
56.
Is iron a conductor or insulator?
a)
Conductor
b)
Insulator
57.
The handle of a frying pan is often coated in rubber because rubber provides...
a)
Heat insulation
b)
Heat conduction
c)
A low melting point
d)
A nonstick surface
58.
An object that doesn't conduct heat well is known as:
a)
a conductor
b)
an insulator
59.
Thermal energy travels...
a)
Hot to cold
b)
Cold to hot
c)
Inside to outside
d)
Outside to inside
60.
Which of the following is NOT an insulator?
a)
Wool
b)
Plastic
c)
Copper
d)
Styrofoam
61.
What is NOT an example of an insulator in the kitchen?
a)
An oven mitt
b)
Pots and pans
c)
A wooden spoon
d)
A plastic measuring cup
62.
A combination of 2 or more substances that cannot be easily separated is called-
a)
a mixture
b)
a solution
c)
a solute
d)
a solvent
63.
Soup has ingredients in it that dissolve. True or False
a)
True
b)
False
64.
Water and Kool-Aid are mixed together. Hot water, coffee and sugar are mixed together. Which substance is the solvent in both?
a)
Water
b)
Coffee
c)
Kool-aid
d)
Sugar
65.
A combination of two or more substances that cannot easily be separated--
a)
mixture
b)
solution
c)
solute
d)
solvent
66.
All are solutes except
a)
sugar
b)
pepper
c)
salt
d)
powdered chocolate
67.
If I added 27 grams of salt to water and separated the solution with a hot plate, what amount of salt would be left behind?
a)
20 grams
b)
0 grams
c)
27 grams
d)
10 grams
68.
What is a substance that is dissolved in another substance?
a)
solution
b)
solute
c)
solvent
d)
compound
69.
Which of the following is a method of separating solutions?
a)
hand seperation
b)
filtering
c)
screening
d)
evaporation
70.
To separate a mixture of salt and water what separation tool/method is used?
a)
Filter
b)
Screen
c)
Magnet
d)
Evaporation
71.
If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?
a)
Filter
b)
Screen
c)
Magnet
d)
Evaporation
72.
A substance that keeps its physical characteristics is a __________.
a)
solution
b)
mixture
c)
compound
d)
atom
73.
A substance that dissolves into another substance is a ________.
a)
mixture
b)
solution
c)
element
d)
atom
74.
Which of the following would be considered a mixture?
a)
lemonade
b)
sweet tea
c)
trail mix
d)
chocolate milk
75.
Which of the following would be a solution?
a)
cereal and milk
b)
sugar water
c)
pizza
d)
mixed berries
76.
Which of the following does not belong?
a)
hamburger
b)
salad
c)
bacon and eggs
d)
chocolate ice cream
77.
A ___________ looks the same through out.
a)
element
b)
matter
c)
mixture
d)
solution
78.
A _______ does NOT look the same through out.
a)
mixture
b)
solution
c)
atom
d)
proton
79.
Sugar water would be considered a _______________.
a)
mixture
b)
solution
80.
Coffee would be considered a ________.
a)
Mixture
b)
Solution
81.
A salad would be considered a _____________.
a)
mixture
b)
solution
82.
Fruit jello would be considered a __________.
a)
mixture
b)
solution
83.
A combination of two or more substances where each keeps its own properties and both can be easily separated.
a)
mixture
b)
solution
c)
substance
d)
physical change
84.
A solution is a special type of mixture.
a)
True
b)
False
85.
How would you separate a mixture of sand and salt?
a)
Mix them with water and let the water evaporate
b)
Mix them with water, pour the mixture through a sieve, then let the water evaporate
c)
Heat the sand and salt mixture for 5 minutes, then let it cool
d)
I would not do any of these because none of these options would work
86.
How would you separate the ingredients of mixture Z?
a)
Water
b)
A magnet
c)
A sieve
d)
My hands
87.
A mixture is always a solution, but a solution is NOT always a mixture.
a)
True
b)
False
88.
Which mixture separation method would use to separate sugar from water?
a)
filtration
b)
magnet
c)
boiling/evaporation
d)
sorting physically
89.
To separate iron filings and sulfur what method should you use?
a)
filtration
b)
sorting
c)
magnet
d)
boiling
90.
To separate trail mix what method should you use?
a)
filtration
b)
sorting
c)
magnet
d)
boiling
91.
To separate the sugar and lemonade, what method should you use?
a)
filtration
b)
sorting
c)
magnet
d)
boiling
92.
Lemonade is a special mixture called a
a)
substance
b)
solution
c)
plasma
d)
ingredient
93.
A solution is a mixture of one or more substances _________ evenly into another substance.
a)
dissolved
b)
evaporated
c)
carried
d)
split
94.
What is salad?
a)
element
b)
compound
c)
heterogeneous mixture
d)
homogeneous mixture
95.
To separate a mixture of salt and water what separation method is used?
a)
Filtration
b)
Distillation
c)
Magnetism
d)
Evaporation
96.
When one substance dissolves in another and the particles are distributed uniformly throughout the other substance is a
a)
Mixture
b)
Solution
97.
Sugar is added to water and stirred until it completely dissolves. Which of the following correctly describes something that has happened to the sugar?
a)
the mass of the sugar increased
b)
the mass of the sugar decreased
c)
the sugar disappeared and no longer exists
d)
the sugar is evenly distributed in the water
98.
When we combined the sand and water together, it formed a _________.
a)
mixture
b)
solution
99.
Toothpicks are less dense than water. As a result, what would happen when placed in water?
a)
They would sink
b)
They would float
c)
They would dissolve
d)
They are not less dense
100.
What is a solvent?
a)
The substance that does the dissolving in a solution.
b)
The substance that is being dissolved in a solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
101.
This is the part of a solution that dissolves
a)
Solute
b)
Solvent
c)
Solution
d)
Mixture
102.
How are solutions and mixtures alike?
a)
They are a combination of substances
b)
They are both chemically combined
c)
they cannot be separated
d)
they have no similarities
103.
Another example of a mixture is
a)
Water and oil
b)
Cereal and Milk
c)
Sand and water
d)
All of the above
104.
Can you separate salt from water using filtration?
a)
yes
b)
no
105.
I mix 10g of salt into 50g of water and then evaporate the water. How much salt is left behind?
a)
10 grams
b)
40 grams
c)
50 grams
d)
60 grams
106.
A mixture contains sand, iron, and salt. What should you do to separate it first?
a)
Pour the mixture through a screen.
b)
Pour the mixture through filter paper.
c)
Use a magnet.
d)
Pour water into the mixture and stir.
107.
When one solution has more solute than another solution, it is said to be more _____.
a)
diluted
b)
concentrated
c)
dissolved
d)
non-saturated
108.
In which temperature would sugar dissolve slowest?
a)
boiling water
b)
hot water
c)
room temperature water
d)
ice water
109.
Air is an example
a)
liquid
b)
mixture
c)
solution
d)
solid
110.
Can a mixture be separated?
a)
No
b)
Yes
c)
Only sometimes
111.
Examples are diamonds (C) and Uranium (U)
a)
elements
b)
mixtures
c)
compounds
112.
Examples are milk and gasoline.
a)
elements
b)
mixtures
c)
compounds
113.
Part of a Solution that does the dissolving of a substance like Salt.
a)
Mixture
b)
Solution
c)
Solute
d)
Solvent
114.
Two or more substances combined together, not chemically. Can be physically separated.
a)
Mixtures
b)
Solution
c)
Solvent
d)
Solute
115.
A mixture in which part of the substance is dissolved and evenly distributed throughout the liquid.
a)
Mixture
b)
Solution
c)
Solute
Solute
Solute
d)
Compound
Solvent
Solvent
116.
Koolaid mix in water is considered a _________.
a)
compound
b)
solution
117.
When salt dissolves in water the only way to get the salt out is by_________.
a)
Screening
b)
filtering
c)
evaporation
118.
A tossed salad would be considered a _______________.
a)
Solution
b)
Mixture
119.
When two or more substances are mixed together physically
a)
mixture
b)
solution
c)
compound
120.
A combination of 2 or more substances that can be easily separated is called-
a)
a mixture
b)
a solution
c)
a solute
d)
a solvent
121.
A student examined a rock sample and described it as having particles of various colors that were 1 millimeter to 12 millimeters in size. The student was making
a)
An inference
b)
A prediction
c)
A hypothesis
d)
An observation
Reset
