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Worksheets7th Grade Final Review
Total questions: 130
Worksheet time: 3hrs 8mins
Name
Class
Date
1.
All the elements on the elements on the right of the periodic table are called...
a)
Metals
b)
Metalloids
c)
Nonmetals
d)
Halogens
2.
The elements in a column of the periodic table...
a)
have similar atomic numbers
b)
start with the same letter
c)
have similar properties
d)
are not related in any way
3.
Is Helium (He) metal, non-metal, or metalloid?
a)
metal
b)
non-metal
c)
metalloid
4.
All the elements on the left side of the periodic table are called..
a)
Metals
b)
Metalloid
c)
Nonmetals
5.
Particles in an atom's nucleus that are neutral and have no charge are
a)
megatrons.
b)
electrons.
c)
neutrons.
d)
protons.
6.
The smallest piece of an element is known as a(n)
a)
element
b)
Atom
c)
molecule
d)
compound
7.
Most of the mass in an atom is concentrated in the
a)
electrons.
b)
nucleus.
c)
protons.
d)
neutrons.
8.
The periodic table has __ groups.
a)
8
b)
7
c)
18
d)
2
9.
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
10.
The horizontal rows on the periodic table are known as
a)
periods.
b)
atoms.
c)
groups or families.
d)
valence electrons.
11.
The atomic number of this pictured element is
a)
28
b)
58.6934
c)
Ni
d)
Nickel
12.
NaSO4
a)
Element
b)
Molecule
c)
Compound
13.
How many total atoms are in the compound C2H8O ?
a)
11
b)
2
c)
8
d)
1
14.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
15.
Na
a)
Element
b)
Molecule
c)
Compound
16.
O3
a)
Element
b)
Molecule
c)
Compound
17.
The law of conservation of matter states that
a)
chemical reactions change matter.
b)
in chemical reactions, the identity of reactants and products is conserved.
c)
atoms are neither created nor destroyed in chemical reactions.
d)
a chemical equation must be balanced.
18.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
19.
Which equation obeys the law of conservation of mass?
a)
H2 + O2 ------> H20
b)
C + 2H2 ----> CH4
c)
2Fe2O3 ------> 2O2 + 4Fe
20.
H2O2
a)
Element
b)
Molecule
c)
Compound
21.
Pb
a)
Element
b)
Molecule
c)
Compound
22.
How we describe and classify matter is called
a)
properties
b)
matter
c)
mass
d)
volume
23.
How did this student classify these objects?Balloon, orange, ball
a)
Weight
b)
color
c)
texture
d)
shape
24.
When paper is folded to make an origami bookmark, what physical property of the paper changes?
a)
mass
b)
weight
c)
shape
d)
smell
25.
Is "cutting wood" a chemical or physical change?
a)
Chemical change
b)
Physical change
26.
Which is more dense?
a)
left cube
b)
right cube
27.
Which of the following is not a physical property of matter?
a)
Shape
b)
Texture
c)
Flammability
d)
Hardness
28.
Is "boiling soup" a chemical or physical change?
a)
Chemical change
b)
Physical change
29.
Which of the following would float on water? Remember, water has a density of 1.0g/cm3.
a)
Honey 1.30 g/cm3
b)
Lamp oil 0.80 g/cm3
c)
Pepsi 1.04 g/cm3
30.
Malleability
a)
Property of an element to be hammered flat into sheets.
b)
Property of an element that can be drawn into wires.
c)
Property of an element to allow light to pass through it.
d)
None of the above.
31.
Conductivity
a)
A property that allows light to flow through it.
b)
A property of an element to be drawn into wires.
c)
A property that allows heat and electricity to pass through it.
d)
The total space occupied by an object.
32.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
33.
What characteristic defines all chemical changes?
a)
There is a change of state.
b)
Electricity is produced.
c)
A new material is formed.
d)
Bubbles are produced.
34.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
sour milk
35.
Photosynthesis is an example of a
a)
physical change
b)
chemical change
36.
Chemical or Physical
a)
Chemical
b)
Physical
37.
In the equation, 2Mg + O2 ---> 2MgO, which are the reactants?
a)
Mg and O
b)
MgO
c)
Mg and MgO
d)
O and MgO
38.
What is a reactant?
a)
The substances that begin the reaction.
b)
The ending substance.
39.
How many total elements are in NaOH3
a)
0
b)
1
c)
2
d)
3
40.
Which of the following is a compound?
a)
Co
b)
O2
c)
C
d)
CO2
41.
In a chemical reaction, everything to the rightof the arrow is called ______________.
a)
Products
b)
Yields
c)
Molecules
d)
Reactants
42.
Which of these electromagnetic waves can we see?
a)
radio
b)
x-ray
c)
microwave
d)
visible light
43.
Gamma rays have the shortest wavelength, and therefore the ____ frequency.
a)
lowest
b)
highest
44.
All waves carry
a)
energy
b)
light
c)
matter
d)
particles
45.
High energy waves have a ____.
a)
high frequency
b)
low frequency
c)
small amplitude
d)
big wavelength
46.
Sound travels fastest through ______.
a)
solids
b)
liquids
c)
gases
d)
empty space
47.
The distance from any point on a wave to an identical point on the next wave.
a)
A. frequency
b)
B. wavelength
c)
C. wave speed
d)
D. amplitude
48.
What kind of wave is shown here?
a)
compressional wave
b)
transverse wave
c)
sound wave
d)
mechanical wave
49.
What do we call the bottom of a transverse wave?
a)
crest
b)
trough
c)
wavelength
d)
amplitude
50.
What happens when you increase the amplitude of a sound?
a)
it makes the sound louder
b)
it makes the sound travel faster
c)
it increases the wavelength of the sound
d)
it increases the frequency of the sound
51.
What is an example of a longitudinal wave?
a)
Sound waves
b)
Radio waves
c)
Visible light waves
d)
X-rays
52.
In what direction does a longitudinal wave travel in comparison to the vibrations of the medium?
a)
parallel
b)
perpendicular
53.
A _____________ is a repeated up and down or back and forth motion.
a)
vibration
b)
force
c)
wave
d)
energy
54.
The material through which a wave travels is called a ____________________.
a)
medium
b)
material
c)
solid
d)
liquid
55.
This type of Electromagnetic wave reveals a break in bones.
a)
gamma ray
b)
x-ray
c)
brokenometer
d)
radio wave
56.
Which letter represents wavelength?
a)
A
b)
B
c)
C
d)
D
57.
Which letter represents amplitude?
a)
A
b)
B
c)
C
d)
D
58.
Which wave has a greater frequency?
a)
A
b)
B
59.
How would a person measure the wavelength on this sound wave?
a)
dense to less dense
b)
trough to crest
c)
compression to compression
d)
beginning of illustration to the end
60.
What type of wave is shown?
a)
Transverse
b)
Longitudinal
c)
Surface
d)
Seismic
61.
This type of wave looks like a wave on the ocean.
a)
longitudinal
b)
transverse
62.
Which wave has a longer wavelength?
a)
wave C
b)
wave D
63.
Which wave has the most energy?
a)
top wave
b)
bottom wave
64.
How many wavelengths are in the wave shown?
a)
1
b)
3
c)
6
d)
7
65.
Sound waves are compressional waves.
a)
true
b)
false
66.
Which color has the lowest frequency and longest wavelength
a)
Orange
b)
Red
c)
Blue
d)
Green
67.
_______ carry the greatest amount of energy.
a)
x-rays
b)
gamma rays
c)
infrared rays
d)
visible light
68.
This wave has the second highest frequency on the spectrum.
a)
microwaves
b)
visible light
c)
x-rays
d)
gamma ray
69.
Wavelengths on the left side of the Electromagnetic spectrum are __________.
a)
long
b)
short
c)
average
70.
These seismic waves compress and expand the ground like an accordion:
a)
p-waves
b)
s-waves
c)
surface waves
d)
z-waves
71.
What is a property of a transparent object?
a)
Almost all of the light rays that reach it are scattered.
b)
Almost all of the light rays that reach it are absorbed.
c)
Almost all of the light rays that reach it are reflected.
d)
Almost all of the light rays that reach it pass through it.
72.
Which is transparent?
a)
a wooden fence
b)
clean water
c)
aluminum foil
d)
a purple balloon
73.
What happens when light hits a mirror?
a)
it makes a color
b)
it reflects
c)
it makes a rainbow
d)
it passes through
74.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
75.
Which is translucent?
a)
tissue paper
b)
air
c)
wood
d)
clear plastic
76.
Which is true of a green grape?
a)
It absorbs green light.
b)
It absorbs white light.
c)
It reflects green light.
d)
It reflects white light.
77.
If you wanted a gift to be a surprise, what kind of container would you put it in?
a)
transparent
b)
thick
c)
opaque
d)
translucent
78.
In which organelles does photosynthesis occur?
a)
mitochondria
b)
stomata
c)
xylem
d)
chloroplast
79.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
80.
Plants need ________ for photosynthesis
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
81.
What molecule is broken down to provide energy for life processes?
a)
oxygen
b)
carbon dioxide
c)
glucose
d)
water
82.
Where does cellular respiration occur?
a)
mitochondria
b)
stomata
c)
phloem
d)
chloroplast
83.
Using carbon dioxide and water to create glucose and oxygen is
a)
photosynthesis
b)
respiration
c)
diffusion
d)
osmosis
84.
What process is the diagram representing?
a)
Photosynthesis
b)
Soil development
c)
Plant reproduction
d)
Nitrogen Cycle
Nitrogen cycle
Nitrogen cycle
85.
C6H12O6 is the chemical formula for what product
a)
water
b)
oxygen
c)
carbon dioxide
d)
glucose
86.
What shape are most animal cells?
a)
round / irregular
b)
rectangular
87.
Major difference in plant cells and animal cells
a)
nucleus
b)
mitrochondria
c)
cell wall (plants have/animals don't)
d)
plasma membrane
88.
Controls what passes in and out of the nucleus
a)
Nuclear Membrane
b)
Vacuole
c)
Ribosome
d)
Lysosome
89.
Directs all cell activities "Brain or Control Center of cell"
a)
Lysosomes
b)
Nucleus
c)
ribosomes
d)
Mitochondria
90.
Jelly-like substance found inside cell that acts as a medium for chemical reactions within the cell
a)
Nuclear Membrane
b)
Golgi Body
c)
Cytoplasm
d)
Ribosome
91.
"Storage tanks" Can hold food, water or waste for the cell
a)
Ribosomes
b)
Vacuole
c)
Chloroplast
d)
Nucleolus
92.
What does Chloroplast do?
a)
The organelle that uses energy from the sun to make its own energy
b)
Jelly-like substance within a living cell excluding the nucleus
c)
It helps in the process of respiration
d)
The organelle that uses energy from the sun to make food
93.
Tiny cell structures that carry out specific functions within the cell.
a)
membranes
b)
nucleus
c)
organelles
d)
organs
94.
What shape are most plant cells?
a)
round / irregular
b)
rectangular
95.
This structure is only in plant cells. It is outside of the cell membrane and adds more support/structure to the plant.
a)
Cell membrane
b)
Cell Nucleus
c)
Cell Wall
d)
Endoplasmic Reticulum
96.
What is diffusion?
a)
when molecules move
b)
when molecules move from a high concentration to a low.
c)
no movement
d)
molecules move everywhere
97.
Where is there a low concentration of dye?
a)
at the bottom of cup
b)
in the color
c)
at the top of cup
d)
no concenteraion gradient
98.
Osmosis it the diffusion of __________.
a)
water
b)
glucose
c)
air
d)
passive transport
99.
In this state of matter the molecules are very tightly packed together
a)
Solid
b)
liquid
c)
gas
100.
An increase in temperature does what to diffusion?
a)
Speeds it up
b)
Slows it down
c)
Has no effect
d)
I wish i knew. Really I do.
101.
Particles are too large to enter the membrane.
Need help from channel proteins.
No energy
Need help from channel proteins.
No energy
a)
active transport
b)
passive transport
c)
facilitated diffusion
102.
Equilibrium?
a)
a large amount of substance on side of the cell and a small amount on the other side
b)
a small amount of substance on side of the cell and a large amount on the otherside
c)
equal amount of substance on either side of the membrane
d)
no particles on either side of the a cell membrane
103.
The offspring from asexually reproduced organisms are?
a)
Different than their parents
b)
Identical to parents
c)
Like a combination from both parents
d)
A different species
104.
If two organisms reproduce sexually, then their offspring will exhibit a genetic makeup that is -
a)
identical to only one parent
b)
identical to all of its siblings
c)
a unique combination of traits
d)
the recessive traits of each parent
105.
All of the offspring of an organism have the same genetic material, which is identical to the parent organism. From this, we can conclude that this organism -
a)
makes its own food
b)
is unicellular
c)
live in a marine habitat
d)
reproduces asexually
106.
Bacteria divide through a process called binary fission
a)
True
b)
False
107.
When Mendel studied pea plants, he discovered that the trait for tall pea plants was dominant over short plants. That means that if a pea plant was heterozygous for tall-short trait (Tt), the plant would be...
a)
short
b)
medium
c)
tall
d)
stubby
108.
Genotype refers to the ...
a)
physical expression of the genes
b)
the possible combination of alleles in a gene
c)
whether an allele is dominant or recessive
d)
how an organism will appear
109.
Which of the following are true of sexual reproduction?
a)
two parents
b)
half of genes comes from each parent
c)
increases diversity of the species
d)
all the above
110.
If Spongebob is homozygous for a yellow body, then his genotype would be ...
a)
Yy
b)
yy
c)
YY
d)
Yb
111.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
112.
If an organism reproduces by asexual reproduction, a possible disadvantage would be ...
a)
takes less time to produce offspring
b)
results in low genetic variation of hte species
c)
ability to reproduce in the absence of a mate
d)
allows for more genetic variation in the offspring
113.
Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?
a)
Purebred
b)
Hybrid
114.
Tallness in plants
a)
inherited
b)
acquired
115.
Bird building a nest
a)
inherited
b)
acquired
116.
Dog fetching
a)
inherited
b)
acquired
117.
What is NOT an example of an inherited TRAIT?
a)
eye color
b)
tongue rolling
c)
height
d)
speaking a language
118.
What does heterozygous mean?
a)
An organism that has the same genes for a trait (TT or tt)
b)
An organism that has different genes for a trait (Tt)
c)
When neither gene is fully dominant; offspring is a mixture of both
d)
the different forms of a trait (hair color--> brown, blonde, red
119.
Which of the following alleles is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
120.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
121.
What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness?
a)
0 in 4
b)
1 in 4
c)
2 in 4
d)
4 in 4
122.
AA and Aa always show up as
a)
dominant
b)
recessive
123.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
124.
A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?
a)
25%
b)
50%
c)
75%
d)
100%
125.
The ___________ is the basic unit of life
a)
tissue
b)
cell
c)
organ
d)
atom
126.
Organs and tissues that perform the same function is called _____________?
a)
cells
b)
tissues
c)
organs
d)
organ system
127.
What is the correct order of organization
a)
cells->tissue->organs->organ systems-> organism
b)
tissue->cells->organs->organ systems-> organism
c)
organs->organ systems-> organism->cells->tissue
d)
cells->tissue->organs->organism->organ system
128.
When many organ systems work together it can form...
a)
a cell
b)
an organ
c)
an organ system
d)
an organism
129.
A group of cells that have similar functions? Examples are nervous, epithelial, muscle and connective
a)
cell
b)
tissue
c)
Organ
d)
Organ system
130.
What is a tissue?
a)
Many organs that come together to perform a life process.
b)
Many of the same type of cell that come together into one.
c)
A group of atoms that come together into one body.
d)
An individual fully functioning life form.
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