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WorksheetsBenchmark review
Total questions: 122
Worksheet time: 2hrs 42mins
Name
Class
Date
1.
What is a reactant?
a)
The starting substance
b)
The ending substance
2.
What is a product?
a)
The starting substance
b)
The ending substance
3.
Using the following chemical reaction
Hydrogen + Oxygen --> water
Identify the reactant(s).
Hydrogen + Oxygen --> water
Identify the reactant(s).
a)
Hydrogen and Oxygen
b)
water
4.
Angelina mixes 2 substances together in a beaker. The beaker becomes hot and the liquid changes color.
Did a chemical reaction occur?
Did a chemical reaction occur?
a)
yes, because the properties changed and a new substance was made.
b)
no, because the properties did not change.
5.
Which of the following are NOT signs that a chemical reaction occured?
a)
the properties changed
b)
bubbles of gas formed
c)
color stays the same
d)
smells different
6.
What is a precipitate?
a)
a change in color
b)
a change in temperature
c)
a solid formed
d)
a gas formed
7.
Alex wants to mix two substances together and to find out if a chemical reaction happens. What should he do?
a)
test the solubility before and after mixing
b)
measure the volume before and after mixing
c)
measure the mass before and after mixing
d)
test the density of the before substance but not the after substances.
8.
a student mixes apple juice, water, and cinnamon together. Did a chemical reaction occur?
a)
Yes, because the apple juice changed the color of the water.
b)
yes, because the temperature stayed the sam
c)
no, because the properties stayed the same.
d)
yes, because dissolving is always a chemical reaction.
9.
Burning is always a chemical reaction.
a)
True
b)
false
10.
Which of the following is NOT a chemical reaction?
a)
burning a marshmallow in a campfire.
b)
a campfire
c)
acid rain turning a copper roof green.
d)
Dissolving red Koolaid in water.
11.
The group number tells us how many _________ there are in an element.
a)
groups
b)
valence electrons
c)
energy levels
d)
chemicals
12.
The ________________ tells you how many energy levels are used in an element.
a)
group number
b)
atom
c)
protons
d)
period number
13.
The element Tellurium has the atomic mass of 127.60 and its atomic number is 52. How many neutrons are in the element Tellurium?
a)
179.60
b)
127.60
c)
52
d)
76
14.
The inner energy level can only hold ______ electrons.
a)
1
b)
0
c)
2
d)
18
15.
The characteristics or properties of metals include
a)
shiny and solid
b)
ductile and malleable
c)
lose electrons
d)
all of the above
16.
True or False - An energy level has to be full before moving on to the next energy level?
a)
true
b)
false
17.
How many valence electrons do elements in group 17 have in their outer energy level?
a)
7
b)
17
c)
1
d)
0
18.
Is the Bohr Model for the element Selenium (Se) correct?
a)
yes
b)
no
19.
Is this a correct representation of the Bohr Model for Sodium (Na)?
a)
no
b)
yes
20.
Which particle does not contribute mass to the atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
21.
Which particle contributes the negative charge to the atom?
a)
proton
b)
electron
c)
neutron
d)
nucleus
22.
Water is an element?
a)
true
b)
false
23.
Most of the mass in an atom is made up of _____________________?
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
electrons and quarks
24.
What is the standard unit of mass at the atomic level?
a)
centimeters
b)
millimeters
c)
amu
d)
milligrams
25.
An electron is
a)
positively charged
b)
neutral
c)
negatively charged
26.
atomic number is
a)
the number of protons
b)
the number of electrons
c)
the number of neutrons
d)
the location of an atom on the periodic table
27.
Atomic Mass is the number of
a)
protons and neutrons in the nucleus of an atom
b)
protons and electrons in the nucleus of an atom
c)
neutrons and electrons in the nucleus of an atom
28.
Conservation of mass means
a)
all the atoms present before a chemical reaction are not present after
b)
atoms present before chemical reactions are present after
c)
new substances and new elements are formed in a chemical reaction
29.
A molecule is
a)
a singular particle of a particular element
b)
another name for an element
c)
2 or more atoms that are combined
30.
which of the statements on physical changes are correct
a)
A physical change cannot be reversed
b)
A physical change is a change in state
c)
A physical change is a change in form
d)
A physical change is where new substances are formed
31.
Signs of a chemical change include;
a)
change of colour, change of temperature, precipitate (solid) formed, gas released.
b)
change of colour, reversing back to original form, precipitate (solid) formed, gas released.
32.
Characteristics of metals on the periodic table are
a)
they are not able to be oxidised
b)
they are poor conductors of heat and electricity
c)
have free electrons
33.
Water is the product of the reactants:
a)
oxygen and water
b)
oxygen and carbon
c)
hydrogen and oxygen
34.
The type of reaction that releases energy as heat is called
a)
endothermic
b)
exothermic
c)
respiration
d)
photosynthesis
35.
Organisms who receive their energy by consuming other organisms.
a)
Chloroplast
b)
Heterotroph
c)
Autotroph
d)
Phototropism
36.
The part of a cell that contains the chromosomes (wound up DNA) in eukaryotic cells.
a)
Chloroplasts
b)
Cell Wall
c)
Nucleus
d)
Homeostasis
37.
The genetic code for all of your traits.
a)
Nucleus
b)
DNA
c)
Chloroplast
d)
Recessive gene
38.
The organelle inside a plant cell that converts sunlight into energy.
a)
Chloroplast
b)
Photosynthesis
c)
Parasite
d)
Cell Wall
39.
The part of a plant cell that is rigid & permeable.
a)
Chloroplast
b)
Turgor Pressure
c)
Cell Wall
d)
Phototropism
40.
The term used to define a cell that has a nucleus containing DNA.
a)
Prokaryote
b)
Eukaryote
c)
Autotroph
d)
Homeostasis
41.
A force exerted outward on a cell wall by the water contained on a cell.
a)
Turgor Pressure
b)
Adaptation
c)
Cell Wall
d)
Photosynthesis
42.
The building up of an ecosystem after lava or glaciers have left nothing but rock.
a)
Secondary Succession
b)
Primary Succession
c)
Natural Selection
d)
Adaptation
43.
A cell without a nucleus.
a)
Eukaryotic
b)
Prokaryotic
c)
Heterotroph
44.
Rebuilding an ecosystem after a catastrophic event has occurred and soil is present.
a)
Primary Succession
b)
Secondary Succession
c)
Natural Selection
d)
Adaptations
45.
The trait that is always expressed. It will hide or mask the other trait.
a)
Recessive
b)
Dominant
c)
Natural Selection
d)
Homeostasis
46.
Behavior patterns, or internal and external structures which allow an organism to survive and reproduce in their environment successfully.
a)
Adaptations
b)
Homeostasis
c)
Recessive traits
d)
Natural Selection
47.
The trait that is hidden or masked by the other trait.
a)
Dominant
b)
Eukaryotic
c)
Recessive
d)
Homeostasis
48.
Organisms who make their own energy by taking in light or chemicals.
a)
Heterotroph
b)
Phototropism
c)
Autotroph
d)
Heterotroph
49.
Successful traits are passed onto offspring through natural circumstances.
a)
Natural Selection
b)
Primary Succession
c)
Secondary Succession
d)
Dominant
50.
The response of a plant due to the stimuli of light energy.
a)
Parasitic
b)
Chloroplast
c)
Photosynthesis
d)
Phototropism
51.
This type of organism feeds on a host organism, causing harm to the host.
a)
Decomposer
b)
Parasite
c)
Heterotroph
d)
Carnivore
52.
The organism's ability to maintain equilibrium in their body.
a)
Homeostasis
b)
Heterotroph
c)
Prokaryotic
d)
Autotrophic
53.
The process where plants use the light from the sun to convert carbon dioxide and water into glucose.
a)
Phototropism
b)
Chloroplast
c)
Photosynthesis
d)
Prokaryotic
54.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
55.
Which is an electron?
a)
A
b)
B
c)
C
56.
What is the atomic number?
a)
The number of protons in an element
b)
The number of neutrons in an element
c)
The number of protons and neutrons.
d)
The number of protons and electrons.
57.
What is found in the nucleus of atoms?
a)
Protons and electrons.
b)
Protons, neutrons, and electrons.
c)
Protons and neutrons.
d)
Neutrons and electrons.
58.
How many valence electrons does Sodium (Na) have?
a)
1
b)
2
c)
3
d)
4
59.
Each row in the periodic table is called a
a)
group
b)
period
c)
cluster
d)
unit
60.
Each column in the periodic table is called a
a)
period
b)
group
c)
cluster
d)
unit
61.
Which is the correct formula for:
three hydrogen (H)
one sulfur (S)
four oxygen (O)
three hydrogen (H)
one sulfur (S)
four oxygen (O)
a)
H3SO4
b)
HSO4
c)
H4S3O
d)
H2O
62.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
63.
In the equation, 2Mg + O2 ---> 2MgO, which are the reactants?
a)
Mg and O
b)
MgO
c)
Mg and MgO
d)
O and MgO
64.
Which is NOT an example of chemical change?
a)
production of gas.
b)
change in color.
c)
change in size.
d)
transfer of energy.
65.
Which of the following shows the correct way to balance the chemical equation?
Fe + O2 -> Fe2O3
Fe + O2 -> Fe2O3
a)
4Fe + 3O2 -> 2Fe2O3
b)
2 Fe + 3O2 -> Fe2O6
c)
4 Fe + O6 -> 2Fe2O3
d)
None of the options are correctly balanced.
66.
<--------8N 4N-------->
a)
2N
b)
12N
c)
4N
d)
32N
67.
A greater applied force is required to move an object with a greater mass than one with a smaller mass.
a)
True
b)
False
68.
If two forces act on an object in the same direction, the net force is the _____________
a)
the difference between the two forces
b)
the sum of the two forces
c)
Only one of the forces acts on the object
d)
DOOMSDAY!
69.
Pushing a child on a swing is easier than pushing an adult on the same swing.
a)
1st Law
b)
2nd Law
70.
Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?
a)
first
b)
second
c)
third
d)
fourth
71.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion.
d)
Friction
72.
Which of the following IS NOT an example of work being done?
a)
Pushing a cart in a store
b)
Shooting a basketball
c)
A stand off in tug of war
d)
Running a mile
73.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
74.
What kind of energy is in gasoline in a car tank (car is not on)?
a)
Potential
b)
Kinetic
75.
What is happening at A?
a)
Stationary
b)
Accelerating
c)
Slower steady speed; moving away from the starting position
d)
Steady speed; returning to start position
76.
Mechanical Energy is transferred to _____ Energy.
a)
Solar
b)
Mechanical
c)
Electrical
d)
Potential
77.
What best describes the energy conversion that occurs when you turn on a flashlight?
a)
electrical to thermal to light
b)
chemical to electrical to light
c)
nuclear to electrical to thermal
d)
kinetic to light to thermal
78.
What is happening at D?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
79.
What is happening at E?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Steady speed; returning to start position
80.
Why might an organism have more than one arrow coming from them in a food web?
a)
More than one organism may eat them.
b)
They may eat more than one other organism.
c)
This organism gets its energy from multiple sources.
d)
They have no resources available to them.
81.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
82.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
83.
What does a biotic do?
a)
do nothing
b)
move, repopulate, and live
c)
stand still
d)
dead things
84.
if an eagle/hawk population goes down what happens?
a)
predators are booming
b)
nuke
c)
Mouse population explodes
d)
nothing
85.
What does a limiting factor do?
a)
makes a population grow large
b)
stops a population from growing large
c)
helps organisms adapt to abiotic factors
d)
provides geographical boundaries for migration
86.
If a disease were to infect frogs and kill them off what would be the likely impact of this system?
a)
Decrease the amount of flies
b)
Increase the amount of frogs
c)
Decrease the amount of algae
d)
Increase the amount of algae
87.
anything that an organism needs to live, ex. food, water, space
a)
carrying capacity
b)
resource
c)
succession
d)
denitrification
88.
Biodiversity refers to
a)
extinct species
b)
the variety of species on Earth
c)
nonrenewable resources
d)
the rate of species decline
89.
A dichotomous key for insects is given. To what order does an insect with two pairs of scaly wings belong?
a)
Coleoptera
b)
Heteroptera
c)
Diptera
d)
Lepidoptera
90.
Using this dichotomous key, identity the name of the circled fish.
a)
band-tail puffer
b)
spotted goat fish
c)
peacock flounder
d)
trumpet fish
91.
The _______________________ consists of blood, blood vessels, and the heart.
a)
respiratory system
b)
circulatory system
c)
urinary system
92.
a body system that controls growth and homeostasis by secreting hormones from glands.
a)
skeletal system
b)
nervous system
c)
endocrine sytem
d)
integumentary system
93.
Where is DNA stored in a cell?
a)
Lysosomes
b)
Golgi Complex
c)
Ribosomes
d)
Nucleus
94.
Which organelle is only found in a plant cell?
a)
nucleus
b)
chloroplast
c)
mitochondria
d)
cell membrane
95.
Which kingdom has all multicellular organisms that move to catch their food?
a)
Protist
b)
Fungi
c)
Plant
d)
Animal
96.
Cells that do not have a true nucleus are called....
a)
eukaryote
b)
prokaryote
c)
unicellular
d)
multicellular
97.
Which season is taking place in the NORTHERN Hemisphere in Position 3?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
98.
As the Earth rotates, the part of the Earth facing the sun has ________.
a)
an axis
b)
darkness (night)
c)
daylight
d)
winter
99.
What phase comes BEFORE this one?
a)
Waxing Crescent
b)
Waxing Gibbous
c)
Waning Gibbous
d)
Waning Crescent
100.
What phase comes AFTER this one?
a)
Waning Crescent
b)
Waning Gibbous
c)
Waxing Crescent
d)
Third Quarter
101.
As the moon's shape appears to get smaller, we say that the moon is _.
a)
swelling
b)
waxing
c)
waning
d)
disappearing
102.
The cycle of the moon lasts about a _.
a)
day
b)
year
c)
week
d)
month
103.
A collection of stars, dust, and gas bound together by gravity is...
a)
Universe
b)
Solar System
c)
Planet
d)
Galaxy
104.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
105.
Scientist use Light years to measure objects in space rather than units such as Miles or Kilometers because of how massive the Galaxy and Universe is.
a)
True
b)
False
106.
Hot clouds of gaseous elements and compounds that act as nurseries for stars
a)
Galaxies
b)
Star
c)
Nebulae
d)
Black holes
107.
The illustration provided shows four locations in or near the Milky Way Galaxy. Which of the labeled locations shows the approximate position of the Sun?
a)
W
b)
X
c)
Y
d)
Z
108.
Compared to the rest of the stars, our sun is considered...
a)
Extremely Large and Cold
b)
Small with a medium temperature
c)
Medium size with medium temperature
109.
electromagnetic waves with the longest wavelengths are
a)
gamma rays
b)
x-rays
c)
infrared waves
d)
radio waves
110.
The Himalayas in Asia are an example of what type of plate boundary?
a)
divergent
b)
continent-to-continent convergent
c)
ocean-to-continent convergent
d)
transform
111.
A mid-ocean ridge occurs at a ________ plate boundary.
a)
transform
b)
convergent
c)
divergent
112.
Determine the contour interval:
a)
5 m
b)
10 m
c)
15 m
d)
20 m
113.
What do close contour lines represent on a map?
a)
waterfall
b)
steep area
c)
gradual area
d)
river
114.
Low pressure will usually bring what kind of weather?
a)
Sunny
b)
Calm
c)
Stormy
115.
Which type of front often produces thunderstorms?
a)
cold
b)
stationary
c)
warm
d)
occluded
116.
A _____________ tide occurs when the moon, sun, and Earth are aligned. This is a period of the highest high tides and lowest low tides.
a)
neap
b)
spring
c)
slack water
d)
ebb
117.
Oceans have a big impact on climate because they move _________ around the world
a)
trash
b)
heat
c)
water
d)
salt
118.
__________ can be described as a change in position over a period of time.
a)
Energy
b)
Acceleration
c)
Motion
d)
Force
119.
__________ can be measured as the distance traveled in a given amount of time.
a)
Speed
b)
Acceleration
c)
Energy
d)
Force
120.
____________ is a push or pull on an object.
a)
Motion
b)
Force
c)
Speed
d)
Velocity
121.
_______________ result when two interacting objects are not touching each other, yet are able to exert a push or pull.
a)
Non-contact forces
b)
Contact forces
c)
Motion
d)
Speed
122.
_______________ is friction due to air molecules. It opposes the motion of an object.
a)
Air Resistance
b)
Electromagnetic
c)
Gravitational
d)
Spring
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