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TCAP 7th Grade Science Review Flashcards | StudBud
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TCAP 7th Grade Science Review
TCAP 7th Grade Science Review
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TCAP Science Review for 7th grade
Flashcards
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Questions
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Answers
1
The abilities to dissolve in water and to conduct electric current are examples of
chemical bonding.
physical properties.
chemical properties.
physical changes.
2
A nucleotide contains ALL of the following
EXCEPT:
a nitrogen base
a phosphate
a deoxyribose sugar
a ribose sugar
3
Which of the following is an example of a
chemical change
?
leaves changing color
ice cube melting
mirror breaking
paper ripping
4
Single-celled
prokaryotic
organisms, live in
extreme environments
belong to which kingdom?
Kingdom Archaebacteria
Kingdom Fungi
Kingdom Plantae
Kingdom Eubacteria
5
Select the group of organelles that is common to both plant cells and animal cells.
cytoplasm, mitochondria, cell wall, nucleus
nucleus, cytoplasm, ribosomes, chloroplasts
cell wall, ribosomes, cell membrane, mitochondria
ribosomes, cell membrane, mitochondria, cytoplasm
6
What body system is involved in the mechanical & chemical breakdown of food?
nervous
digestive
excretory
circulatory
7
Which of these is the best reason to use a renewable energy instead of relying on fossil fuels?
fossil fuels form naturally on Earth
fossil fuels create many kinds of pollution
fossil fuels can be solids, liquids, or gases
fossil fuels power many different devices
8
Matter is neither created nor destroyed in a chemical or physical reaction-this is the law of
exothermic change
law of conservation of matter
law of thermal matter
law of endothermic change
9
Which of the following is
NOT TRUE
about
natural selection
?
believed to be main proc. of evolution.
Says orgs. adapted to their env. survive and prod. offspring
has been disproved many times.
first proposed by Charles Darwin.
10
The illustration shows how:
animals release C6H12O6,plants release H2O
plants release O2, animals release CO2
animals release H2O, plants release CO2
plants release CO2, animals release O2
11
What process is being demonstrated in the beakers that are pictured?
fission
diffusion
active transport
homeostasis
12
An RBC placed in a(n) ____________ salt solution will swell as water seeks equilibrium.
hypotonic
sea
isotonic
hypertonic
13
To investigate the growth rate of potted bean plants, which variable is NOT relevant?
the color of the pot
the type of soil used
the amount of water given
the amount of light exposure
14
What does the Lewis structure
NOT
tell you about the Carbon atom?
it needs 1 electron to be balanced
it will be involved in an ionic bond
it needs 4 electrons to be balanced
it has 4 valence electrons
15
Multi-celled
orgs which are
heterotrophs
, have
no cell wall
,cells that
DO contain a nucleus
Kingdom Archaebacteria
Kingdom Fungi
Kingdom Animalia
Kingdom Plantae
16
Which shows a balanced chem. equation for the decomposition of aluminum oxide? (Al
2
O
3
)
2Al2O3 --> 4Al + 3O2
Al2O3 --> 2Al + O2
2Al2O3 + 4Al + O2
Al2O3--> 2Al + 3O2
17
Which of the following identifies the correct reactants and products of cellular respiration?
carbon dioxide + water -> sugar + oxygen
water + oxygen -> sugar + carbon dioxide
sugar + oxygen -> carbon dioxide + water
sugar + carbon dioxide -> oxygen + water
18
Which cell organelle is identified as #9 in the diagram?
nucleus
mitochondrion
lysosome
endoplasmic reticulum
19
Which is
NOT
a function of the muscular system?
helping the lungs take in air
relaying messages to the brain
moving the bones of the skeletal system
helping the stomach digest food
20
Which of the following correctly describes a solid?
Part.closely packed but have E & can slide past each other.
Part. are clos. locked in position & only vibrate in place.
The particles do not move at all.
Part. are free to move independ and collide frequently.
21
The start of the ___________________ started an increase in the combustion of fossil fuels.
Industrial Revolution
Cambrian Period
Renaissance
Age of Enlightenment
22
A wireless BP monitoring system that takes patients' blood pressures while they are asleep:
will cut the average hospital stay by 2 days.
has an intended benefit of not bothering the patient.
will reduce patients' hospitals stays.
means that patients will have to take fewer medications.
23
Mom cat w/ tail (Tt) and Dad cat w/no tail (tt) have what % chance of kittens with tails?
50%
100%
75%
25%
24
Eukaryotic orgs that decompose, absorb nutrients from surroundings, & don't photosynthesize?
Kingdom Fungi
Kingdom Animalia
Kingdom Archaebacteria
Kingdom Protista
25
The organism shown in the picture shows an example of:
sexual reproduction
pollination
fermentation
asexual reproduction
26
Which level of organization would be
less
complex than the cell?
kingdom
species
organelle
phylum
27
Name for 2 or more different substances that are physically intermingled but can be separated ?
mixture
element
molecule
compound
28
Kingdom of microscopic orgs. w/ autotrophs AND heterotrophs, some uni-, some multi-cellular?
Kingdom Eubacteria
Kingdom Plantae
Kingdom Archaebacteria
Kingdom Protista
29
Scientific conclusions that are influenced by the opinions/beliefs of the experimenter are __.
biased
dependable
correct
fair
30
Which tool should students use to accurately measure the
volume
of these rocks?
triple beam balance
meterstick
light microscope
graduated cylinder
31
A change in the nucleotide sequence of DNA can cause:
a harmful mutation.
an altered phenotype.
a helpful mutation.
a neutral mutation.
32
The phase of mitosis that would
FOLLOW
the pictured phase is:
telophase
metaphase
anaphase
prophase
33
The chemical formula for a glucose molecule is C
6
H
12
O
6
, The subscripts represent the:
number of atoms of each element in a glucose molecule.
mass of each element.
number of valence electrons in each atom.
total number of bonds made by each atom.
34
What is the correct arrangement for the periodic table shown at right?
metalloids - left; non-metals - middle; metals - right
metals - left; metalloids - middle; non-metals - right
metals - left; metals - middle; metalloids - right
non-metals - left; metalloids - middle; metals - right
35
Which organelles occur only in animal cells and appear during prophase in mitosis?
13
6
5
7
36
Boyle's Law states that
pressure
of a gas tends to:
decrease as the volume of the container increases.
increase as the volume of the container increases.
remain constant as the volume of the container decreases.
increase as the volume of the container decreases.
37
Gases that absorb
long wave radiation
and re-emit it as
heat energy?
greenhouse gases
CO2, Methane, water vapor, argon
smogs
chlorofluorocarbons
38
Which body system works to rid your body of toxins in the form of liquid waste?
excretory system
immune system
integumentary system
digestive system
39
Which structure is called the powerhouse of the cell because ATP is released here?
5
8
13
9
40
Which of the following is the best evidence for a chemical reaction?
change of state.
formation of a new substance.
change in temperature.
gas bubbles.
41
Which of these equations
best
shows the reactants and products of photosynthesis?
sugar + carbon dioxide --> oxygen + water
sugar + oxygen --> carbon dioxide + water
carbon dioxide + water --> sugar + oxygen
water + oxygen --> sugar + carbon dioxide
42
Which of the following would increase the rate of reaction?
increase the activation energy.
increase the concentration of reactants.
maintain a constant temperature.
add an inhibitor.
43
Which of the following is a characteristic of plant cells but not animal cells?
boxy shape
chloroplasts
central vacuole
cell wall
44
Which of the following
IS NOT
part of the cell theory dev. by Schleiden, Schwann, & Virchow?
Cells arise from pre-existing cells.
Cell is the basic unit of structure and fxn in organisms.
All living organisms are composed of one or more cells.
Cells arise spontaneously when environment is favorable.
45
What 2 pieces of lab equip. are best for meas. the mass and volume of a rectang. block of wood?
a balance and a stopwatch
a graduated cylinder and metric ruler
a balance and a metric ruler
metric ruler and stopwatch
46
What is the major function of the human reproductive system?
producing gametes
breaking down food
protecting internal organs
eliminating wastes
47
Which is the best example of an adaptive bioengineered product?
sugar cane that is processed to make fuel
ladybugs that are raised to eat garden pests
mules that are bred from horses and donkeys for farm work
eyeglasses that are used to correct nearsighted vision
48
How can wire-haired parent dogs (Ww) produce smooth-haired puppies (ww)?
puppies received smooth hair allele from each parent
pups received wire hair allele from one smooth from other
puppies received same chromosomes from each parent
puppies received two of same alleles from one parent
49
Charles's law states that at a constant pressure, an
increase
in temp. of a gas will cause:
a decrease in volume
an increase in volume
a decrease in pressure
an increase in pressure
50
Elements that have the same number of valence electrons are:
within the same period of the periodic table.
within the same group of the periodic table.
called metalloids.
called noble gases.