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Worksheets8th grade midterm exam review- 2019-2020
Total questions: 153
Worksheet time: 47mins
Name
Class
Date
1.
What is the amount of electrons that hydrogen has
a)
1
b)
5
c)
2
d)
25
2.
Find the number of electrons (atomic # 18 atomic mass 40 argon)
a)
20
b)
22
c)
42
d)
18
3.
What is the atomic number of Helium (He)
a)
1
b)
2
c)
3
d)
JoPo
4.
How do you find density
a)
Volume X Mass
b)
Mass + Volume
c)
Mass / Volume
d)
Einstein would know
5.
How many valence electrons are in an atom with 9 protons?
a)
9
b)
7
c)
8
d)
95
6.
What is the Scientific Method?
a)
A problem
b)
The step to solve a problem
c)
Used to comparison in your experiment
d)
What stays the same from one experiment to the next
7.
What is an independent variable?
a)
Used for comparison in your experiment
b)
What stays the same from one experiment to the other
c)
The “cause” , what you’re changing in an experiment
d)
A measurement
8.
What is mass
a)
Where we go on Wednesdays
b)
The weight of something
c)
Ÿôūr möm
d)
How much matter is in an object
9.
How is atomic mass calculated?
a)
Protons and Electrons
b)
Electrons and Neutrons
c)
Protons and Neurons
d)
Neutrons and Protons
10.
What are examples of physical properties?
a)
brainstorming,thinking,dreaming
b)
Rusting,heat,light
c)
Shape,color,texture
d)
All of the above
11.
What is the metric unit for 1000 grams
a)
1 kilogram
b)
3 pounds
c)
1 gigagram
d)
1 attogram
12.
What are examples of chemical properties?
a)
Dreaming, thinking, brainstorming
b)
Flammability, rusting, light
c)
Shape, color, texture
d)
All of the above
13.
What is the formula for density
a)
Volume divided by mass
b)
Length divided by mass
c)
Mass multiplied by volume
d)
Mass divided by volume
14.
Why do we use the metric system?
a)
To convert a smaller unit to a larger unit.
b)
We measure it with a calculator.
c)
We use it because metric units are decimal based.
d)
A table that shows the elements, their atomic number, symbol, and average atomic mass
15.
What are 3 of the 5 states of matter
a)
Solid, Liquid, Air
b)
Brick, water, plasma
c)
BC compact, trees, gas
d)
Solid, Liquid, Gas
16.
Definition of experiment
a)
A explosion
b)
Procedure taken to make a discovery
c)
Elephant toothpaste
d)
Florida
17.
How do you measure length
a)
Finger
b)
Tape
c)
Ruler
d)
Option 4
18.
What are the states of matter?
a)
Logs,water,rock
b)
Sand,ocean,fish
c)
Chicken,egg,pig
d)
Solid, liquid, gas
19.
1,000 millimeters is how many kilometers
a)
0.1
b)
1
c)
1.0E-4
d)
100
20.
What is convection
a)
Different temp objects that touch will come into equilibrium
b)
If A and B are the same temp and A and C are the same temp then B and C are the same temp
c)
In a liquid the hot liquid will float and the cold liquid will sink
d)
Every motion that happens increases the entropy (disorder) of the universe
21.
What is mass
a)
How much matter is in an object
b)
How much an object weighs
c)
How much an object can hold
d)
How hard an object is
22.
What is dependent variable
a)
Im a potato.
b)
The control
c)
The outcome caused by changing the independent variable.
d)
The thing you change in an experiment.
23.
what is 30 degrees Fahrenheit in Celsius?
a)
271.9
b)
30
c)
-1.1
d)
11.1
24.
What is heat
a)
Movement of energy
b)
The quality of being hot
c)
A measurement of thermal energy
d)
Flow of energy from a warmer object to a cooler one
25.
How do you make a complete circuit
a)
You create a magnetic field around the device
b)
The battery has its power sent through a device and eventually into the other end of the battery
c)
You create a Minecraft server and plug the device into it and control it in Minecraft
d)
All the above
26.
Opposite charges will _______ each other.
a)
Current
b)
Repel
c)
Attract
d)
Light
27.
Like charges will _______ each other.
a)
Light
b)
Repel
c)
Attract
d)
Charged
28.
Non-metals are found on what types of the periodic table?
a)
The left side!
b)
The middle!
c)
The right side!
d)
Everywhere!
29.
Which of the following is a chemical change
a)
Changing color
b)
Changing shape
c)
Burning wood
d)
Boiling water
30.
what is a parallel circuit
a)
two different circuits that never touch
b)
many lightbulbs that are in the same circuit but run seperately
c)
the lightbulbs are in a row
d)
lights that light up
31.
What is mixture
a)
A substance after mixing other substances
b)
Bill nye
c)
Nothing
d)
Where electrons go
32.
Which of the following is an insulator
a)
Glass
b)
Metal
c)
Tin foil
d)
Water
33.
How many valence electrons does Silicon have?
a)
Eight
b)
Four
c)
Two
d)
One
34.
What is a electron cloud
a)
A clod made from a spark
b)
Where electrons are held in a atom
c)
Light
d)
Yes
35.
What are the units of metric system
a)
Kilo, hecto, deca, deci, centi,mili
b)
Kilo, hecta, deca, deci, centi, mili
c)
King henry died by drinking chocolate milk
d)
Mass, volume, density, length
36.
What is a metal?
a)
Element that shares some properties with both metals and nonmental
b)
Element that is usually a gas or brittle solid at room temperature and is a poor conductor of heat and electricity
c)
Element that is malleable, ductile, a good conductor of electricity, and generally has a shiny or metallic luster
d)
Two chemicals bound together
37.
What is a control variable
a)
The variable that changes
b)
A dinosaur on a Sunday
c)
What stays the same throuought
d)
Something that you control
38.
What is 60 kilometers converted to meters
a)
600
b)
2147483647
c)
60000
d)
6
39.
What is a molecule?
a)
A negatively charged particle with almost no mass
b)
When matter changes into new substances with new properties
c)
A basic substance that can’t be simplified
d)
Two or more atoms that are chemically joined together
40.
What is a heterogeneous mixtures?
a)
Mixture with larger parts that are different with each other
b)
Mixtures that couldn’t be told by looking
c)
A combo of chemicals and elements that has not formed a new substance and whose properties can be changed without changing the mixtures identities
d)
Anything that takes up space and and has mass
41.
What is heat
a)
How hot or cold something is
b)
Amount of thermal energy transfer
c)
How much matter energy something has
d)
How sunny a place is
42.
What is the symbol for Kelvin Scale
a)
F
b)
K
c)
C
d)
USD
43.
What is a heterogeneous mixture
a)
cookie dough
b)
salad
c)
Classroom
d)
Trail mix
44.
What section is the biggest in the periodic table
a)
Metalloid
b)
Non metal
c)
Yeet
d)
Metal
45.
What is true about the metric system
a)
It is used to tell measurement
b)
It is based of multiples of ten
c)
It is a decimal based system
d)
All
46.
What is voltage
a)
Stream Of electrons
b)
Force that moves electrons through things
c)
Allows follow of electrons
d)
Build of charge
47.
What is an example of freezing?
a)
Water in a puddle disappearing
b)
Water turning into ice
c)
Water staying water
d)
Water falling from the sky
48.
What is FE
a)
Iron
b)
Gold
c)
Neon
d)
Helium
49.
What are the three states of matter
a)
Sollid, liquiid gas
b)
Solid liquid gas
c)
Slid gas lqid
d)
I dont know but dogs are cute
50.
True or false, A series circuit is better than a parallel circuit?
a)
true
b)
false
c)
Pick an
d)
Answer
51.
true or false: gravitational force is stronger than electrical force
a)
true
b)
false
c)
gravity
d)
electric
52.
condensation
a)
water vapor to liquid
b)
solid to gas
c)
liquid to solid
d)
gas to solid
53.
melting
a)
solid to gas
b)
liquid to solid
c)
solid to liquid
d)
liquid to solid
54.
what are the types of charges
a)
positive/negitive/neutral
b)
yes
c)
solid/liquad/gas
d)
electromagnetic field
55.
what is an example of insulator
a)
copper wire
b)
steel ball
c)
plastic
d)
i dunno
56.
What is Density?
a)
Amount of mass per unit volume
b)
How thick a object is
c)
The length of an object
d)
The amount of space and object takes up
57.
What is length?
a)
How far an object can stretch
b)
How long something is
c)
The distance between two points
d)
The starting point
58.
What is matter?
a)
Anything larger then a penny
b)
Anything that has mass and takes up space
c)
Anything that is smaller then an elephant
d)
Only living animals
59.
What is the difference between a period and a group on the periodic table
a)
Period: horizontal flow, group: vertical column
b)
Period: the end of a sentence, group: a list
c)
Period: one, group: two or more
d)
They are the same
60.
What does melting mean?
a)
Gas OR solid turning into a liquid
b)
The process of gas turning into liquid
c)
Poof! ice doesn’t exist now
d)
A form changing from solid to liquid
61.
What are the three states of matter?
a)
Rocks, air, and water
b)
Solid, liquid, and oxygen
c)
Solid, liquid, and gas
d)
Solid, Liquorish, and gas
62.
What is a insulator?
a)
material that doesn't allow electrons to move easily
b)
Time capsule
c)
Water can’t flow
d)
Holds energy in a shell like case
63.
What is a current?
a)
A battery brand best used for experiments
b)
A flow of energy for the brain
c)
a flow of electrons over a certain period of time
d)
A strong water pull
64.
What is heat?
a)
A Miami basketball team.
b)
The amount of energy in an object.
c)
How hot something is
d)
Energy transfer when two objects are at a different temp.
65.
What is the melting point of water in Kelvins
a)
32
b)
0
c)
273
d)
Over 9,000!
66.
Which charge moves freely
a)
Negative
b)
Positive
c)
Neutral
d)
All of the above
67.
Which is charging by friction
a)
A balloon rubbing a sweater
b)
Rubbing batteries.
c)
Touching a balloon to a charged object.
d)
Shoving a fork up an electrical outlet.
68.
Which is physical property.
a)
Burning paper
b)
Chopping wood
c)
Lighting a candle.
d)
All of the above
69.
What is an endothermic reaction.
a)
A reaction that releases heat.
b)
A reaction that is an enderman.
c)
A reaction that creates heat
d)
A reaction that absorbs heat.
70.
What is condensation
a)
Liquid to gas
b)
Gas to solid
c)
Gas to liquid
d)
Solid to gas
71.
Which of the states of matter has definite shape and definite volume?
a)
Solid
b)
Liquid
c)
Gas
d)
All of the above
72.
What is electrostatics?
a)
The build up of current
b)
The build up of charge
c)
The build up of electricity
d)
The building of legos
73.
Finish the sentence: like charges *blank 1* unlike charges *blank 2*
a)
1- attract 2- repel
b)
1- repel 2- attract
c)
1 and 2- repel
d)
1 and 2- attract
74.
What are the 3 types of elements?
a)
Metal, metalods, and nonmetals
b)
Metal, liquid, metalloids
c)
Solid, liquid, and gas
d)
Metal, metalloids, and nonmetals
75.
What type of element is boron?
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
All of them
76.
What is a hypothesis?
a)
A predicted outcome in an experiment
b)
Something that you are trying to solve
c)
An element
d)
A fruit
77.
What is the dependent variable?
a)
What you change in an experiment
b)
What stays the same in an experiment
c)
What happens in an experiment
d)
What you are trying to measure in an experiment
78.
How do you format a hypothesis?
a)
If, than, because
b)
I guess this...
c)
I'm going to test if...
d)
My hypothesis is...
79.
What step comes first in the scientific method?
a)
Hypothesis
b)
Background Research
c)
Question
d)
Experiment
80.
Where do electrons go on a diagram of an atom?
a)
in the nucleus
b)
On the electron cloud
c)
nowhere
d)
they don't exist
81.
What is hydrogen on the periodic table?
a)
non metal
b)
metal
c)
metalloid
d)
a gas
82.
Describe the scientific method in order
a)
A series of procedures scientist use to solve a problem scientifically
b)
Question, background research, develop a hypothesis, experiment, analyze data, conclusion
c)
Back on research, question, hypothesis, conclusion, analyze data, experiment
d)
A prediction that can be tested
83.
What is a control variable
a)
the variable that doesn't receive the treatment and is used to compare
b)
The amount of mass in a given volume
c)
A variable who is variation is not depend on that of another
d)
The object to be mass is placed on the scale and then you move the weights and the beams
84.
What phase change is solid to gas?
a)
evaporation
b)
sublimation
c)
deposition
d)
melting
85.
The sun is an example of...
a)
convection
b)
conduction
c)
life
d)
radiation
86.
What is an example of a Homogeneous mixture
a)
Sand
b)
Iron fillings
c)
Cookie dough
d)
Salt water
87.
What does a conductor do?
a)
allow the flow of energy
b)
nothing
c)
prevents the flow of energy
d)
helps me with my homework
88.
What are 3 parts of the periodic tables
a)
Row colum
b)
Group, period
c)
Period
d)
Metals, non metals, metalloids
89.
What happens if one light goes off in a series circuit?
a)
nothing happens
b)
the light comes back on
c)
all the other lights go off
d)
the power source explodes
90.
What is the molecular structure of a solid
a)
Tightly packed
b)
Moves freely
c)
Always moving
d)
Science
91.
How are molecules moving in a gas
a)
Slow
b)
Not moving
c)
Moving freely
d)
vibrating in place
92.
what is electrostatics the build up of
a)
Voltage
b)
Conductors
c)
Electric forces
d)
Charge
93.
Like charges________ Unlike charges________
a)
Heavy, light
b)
Like charges, unlike charges
c)
Repel, Attract
d)
Attract, repel
94.
What is an example of radiation?
a)
The sun heating up a piece of metal
b)
Warm winds going over a person's skin
c)
Touching a heat pan handle
d)
Touching a metal sheet in the sun
95.
what does AU stand for in the periodic table
a)
iron
b)
gold
c)
silver
d)
hydrogen
96.
what are the three most common states of matter
a)
tree house and fence
b)
gas car and steering wheel
c)
solid liquid and gas
d)
plasma periodic table and other science stuff
97.
what is the only atom that moves through the light bulb
a)
protons
b)
electrons
c)
neutrons
d)
none
98.
What is Density?
a)
it is the distance between 2 points
b)
it is the measure of the amount of matter in a object
c)
it is the amount of mass in a given volume
d)
it is the amount of space an object takes up
99.
what makes up a nucleus in an atom
a)
neutrons and electrons
b)
Electrons and protons
c)
protons and Atoms
d)
neutrons and protons
100.
What is a example of conduction?
a)
The handle on the pot heating
b)
the water boiling in the pot
c)
steam of the pot flowing up
d)
the sun's rays
101.
What is a example of a conductor?
a)
wood
b)
glass
c)
plastic bottle
d)
copper pipe
102.
What is conduction?
a)
a force under the influence of which objects tend to move far away from each other
b)
the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature
c)
a force under the influence of which objects tend to move toward each other
d)
the separation of charges caused by an electric field
103.
what is the conclusion of a experiment
a)
when you find the answer to your question after analyzing your data
b)
Kevin Hart
c)
when you receive all your data
d)
the educated guess you make to your question
104.
What happens to parallel as you add more bulbs?
a)
the energy stops flowing
b)
stays the same brightness
c)
less bright
d)
brighter
105.
what is a neutron
a)
a thing in a thing
b)
a neutral particle
c)
a positive particle
d)
all of the above
106.
what is a electron
a)
a random number
b)
a negatively charged electron
c)
a positively charged electron
d)
a negatively charged particle
107.
what is condensation
a)
water to gas
b)
Dewayne Jonson
c)
gas to liquid
d)
solid to gas
108.
what is a conductor
a)
Will Ferrell
b)
a object that allows electrons to flow freely
c)
a object that restricts the flow of electrons
d)
none of the above
109.
do opposites repel or attract
a)
repel
b)
attract
c)
neither
d)
both
110.
what is current
a)
the flow of electricity
b)
the restriction of electricity
c)
Home Alone
d)
None of the above
111.
How can objects be charged?
a)
Cranking 90's
b)
Running
c)
Rubbing
d)
Dancing
112.
Like charges?
a)
attract
b)
repel
c)
Fly
d)
Dissapear
113.
In the scientific method what does Question mean?
a)
a guess
b)
that may lead to a hypothesis and help us in answering (or figuring out) the reason for some observation.
c)
a work
d)
a toy
114.
What is density?
a)
Scientififc Method
b)
quantity of density per unit volume
c)
Quantity of volume per unit mass
d)
quantity of mass per unit volume
115.
Problem
a)
a gift
b)
a car
c)
is something you don't understand, but you can do an experiment to help you understand.
d)
a bus
116.
Hypothesis
a)
is an idea or explanation that you then test through study and experimentation.
b)
a guy
c)
a girl
d)
playing something
117.
Dependent Variable
a)
your sibling
b)
its the variable you do nothing to
c)
Is the variable you compare to
d)
Variable-is the variable being tested in a scientific experiment.
118.
Experiment
a)
is a procedure carried out to support, refute, or validate a hypothesis.
b)
hi
c)
bye
d)
sup
119.
Analyze Data
a)
a dog
b)
a cat
c)
is the process of interpreting the meaning of the data we have collected, organized, and displayed in the form of a table, bar chart, line graph, or other representation.
d)
a mouse
120.
Conclusions
a)
is a short paragraph that discusses the overall results of an experimental procedure and explains whether the proposed hypothesis at the beginning of the experiment was correct or not.
b)
love
c)
care
d)
kind
121.
What is a conductor?
a)
material that holds its electrons tight
b)
material that has loose electrons
c)
Neutron
d)
negatively charged object
122.
What is atomic mass
a)
The amount of protons
b)
The weight of the atom
c)
The amount of mass of the atom
d)
The amount of electrons
123.
What is heat
a)
The measurement of energy
b)
The quality of being hot
c)
The amount of thermal energy being transferred when two objects are at different temperatures.
d)
All of the above
124.
what Is a LiQuid🤠
a)
Definite shape indefinite volume
b)
Indefinite shape definite volume
c)
Definite shape definite volume
d)
Indefinite shape indefinite volume
125.
What is attraction
a)
When two charges stick together
b)
When two charges go away from each other
c)
When two charges do nothing
d)
Ur mom
126.
Which charge moves freely from place to place?
a)
The electron with a negative charge
b)
The neutron with a negative charge
c)
The electron with a positive charge
d)
The neutron with a positive charge
127.
What is repulsion
a)
When two charges repul each other
b)
When two charges repel each other
c)
When two charges rapel each other
d)
When two charges repel each uther
128.
Conduction is what?
a)
Transmitting heat through direct contact.
b)
Transmitting heat through rays of radiation
c)
Transmitting heat through gas
d)
Potatoes are yummy
129.
An insulator...
a)
Keeps energy in
b)
Lets energy escape
c)
transfers energy through itself
d)
ya yeet ya skeet
130.
What is a hypothesis
a)
Density
b)
Length
c)
Question
d)
A educated guess
131.
what direction does a period show on the periodic table?
a)
up and down
b)
Verticle
c)
Horizontal
d)
Yes
132.
in a parallel circuit...
a)
if one light goes out all of them goes out
b)
If one light goes out the rest stay on
c)
If one light goes out all but one other light goes out
d)
EVERYTHING EXPLODES AND EVERYTHING CEASES TO EXIST.
133.
What direction does a group in the periodic table show?
a)
Sideways
b)
Vertical
c)
Horizontal
d)
No
134.
What is the metric unit for length
a)
Miles
b)
Liter
c)
Meter
d)
Foot
135.
What is conduction
a)
Heat transfer through the air
b)
Heat transfer through the touch
c)
Heat transfer through the sun
d)
All
136.
What is the difference between heat and temperature?
a)
There is no difference
b)
heat is the movement of thermal energy and temperature is the measurement of the average kinetic energy.
c)
Temperature measures heat and heat is just how it is measured
d)
Heat and measurement both do similar things, but heat is measured differently
137.
Which of these is not part of the scientific method
a)
Analyze data
b)
Conclusion
c)
Hypothesis
d)
Organize your lab
138.
What is Atomic mass
a)
Metal
b)
The mass of an atom
c)
Matter
d)
Compound
139.
Which two charges remain in the nucleus in an atom
a)
the proton and the neutron
b)
the nucleus
c)
the negative and the positive
d)
the proton and the conductor
140.
What one of these is not a solid
a)
Ice
b)
Milk
c)
Chalk
d)
Pencil
141.
What is the zeroth law of thermodynamics (entropy = randomness or disorder of the universe)
a)
Entropy can not go down it can only increase
b)
Energy is neither created nor destroyed
c)
If A and C are the same temp. and A and B are the same temp. then B and C are the same temp.
d)
When an object approaches 0K it’s change in entropy becomes 0
142.
What is thermal energy
a)
Radiation
b)
A type of energy that heat or sensible heat
c)
Gas
d)
Piazza rolls
143.
what is an atom made up of
a)
Particles
b)
Pronouns neutrons electrons
c)
Protons Newtons electrons
d)
Protons neutrons electrons
144.
What is an insulator
a)
Charge
b)
Voltage
c)
A substance which doesn’t conduct electricity
d)
A conductor of electricity
145.
What is density
a)
a measure of the amount of mass per unit volume
b)
Analyze data
c)
Volume
d)
Problem
146.
how many protons are in oxygen
a)
1
b)
6
c)
69
d)
666
147.
how many protons does carbon have
a)
6
b)
8
c)
69
d)
ree kid
148.
what is the atomic number of thulium
a)
1
b)
82
c)
66
d)
69
149.
who is the best teacher in the world(there is no wrong answer)
a)
Mrs. king
b)
Mrs. tessmer
c)
mr. hurst
d)
mrs. deysmyter
150.
Is electrostatics stronger than gravity?
a)
Yes
b)
No
c)
only on earth
d)
only in our classroom
151.
Opposite charges have weak pull strength and like charges have strong pull strength<br />
a)
true
b)
false
c)
Yee
d)
Haw
152.
Simple circuits can’t handle many bulbs because
a)
There isn’t enough copper wire
b)
You can’t put multiple bulbs on any circuit
c)
One battery can’t support many
d)
Scooby doo wills otherwise
153.
What measures an object’s mass?
a)
A measuring cup
b)
A gradulated cylinder
c)
A ruler
d)
A triple beam balance
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