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2017-2018 Science Final Exam Review Flashcards | StudBud
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2017-2018 Science Final Exam Review
2017-2018 Science Final Exam Review
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8th Grade Science Review #grade8science #STAAR
Flashcards
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Questions
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Answers
1
The ____ is the source of all energy in our atmosphere
Sun
Moon
water cycle
Coriolis effect
2
How many milliliters of Coke are in a 2 liter bottle?
0.002
0.02
200
2000
3
Rotation of the Earth gives us:
climate
years
the day & night cycle
seasons
4
What type of island will form when two oceanic plates converge??
continental island
volcanic arc island
reef island
barrier island
5
Not all areas of Earth's surface receive the same amount of radiation because the surface ___.
is curved
has continents on it
is flat
is mostly water
6
Which of the following is not part of the water cycle?
sublimation
runoff
precipitation
condensation
7
In the rock cycle, each type of rock can ____.
all of the above
form other rocks
provide material to make other rocks
be changed by forces at Earth's surface
8
Which of the following formats is common for a hypothesis?
if, then statement
educated guess
question
what if statement
9
Which of the following elements is a metalloid?
Copper
Hydrogen
Boron
Aluminum
10
Which of the following graphs is best used to show the relationship between two variables?
line graph
histogram
bar graph
circle graph
11
Violent storms generally form along ____.
warm fronts
stationary fronts
occluded fronts
cold fronts
12
This biome is often known as a frozen desert.
chaparral
rain forest
tundra
taiga
13
What product of photosynthesis is utilized by plants for energy?
oxygen
glucose
water
carbon dioxide
14
A conclusion about an observation is a(n) _____.
scientific method
technology
inference
hypothesis
15
In a food web, how much energy is transferred between trophic levels?
100%
50%
90%
10%
16
When designing an experiment, the first step is to _____.
analyze the data
list a procedure
state the problem.
form a hypothesis
17
What is the metric unit for distance?
gram
meter
kilogram
inch
18
This is a type of symbiotic relationship where both organisms benefit.
Parasitism
Mutualism
Predation
Commensalism
19
A ____ pressure system has a clockwise rotation and usually brings fair weather.
low
mid-level
cold
high
20
What is the purpose of the endocrine system?
to regulate hormones
to fight disease
to expel wastes
to move bones
21
What is the unit for work?
newton (N)
meters/second/second (m/s/s)
Joule (J)
meters/second (m/s)
22
Which of the following are most important for hurricane development?
heat and moisture from the ocean
the size of the ocean and moisture from it
ocean currents and moisture
the size of the ocean and heat from it
23
These are factors in an ecosystem that are living such as animals and plants.
biotic factors
ecological factors
abiotic factors
carbonic factors
24
The atomic mass of an atom is equal to the ____.
number of neutrons
number of protons
number of protons + neutrons
number of protons + electrons
25
Which of the following elements has one valence electron?
Boron
Chlorine
Neon
Sodium
26
An influence, such as sunlight and temperature, is a(n) ____ factor.
internal
competition
external
growing phase
27
A marble has a mass of 4 grams. It displaces 10 mL of water. What is its density?
.4 g/mL
40 g/mL
400 g/mL
4 g/mL
28
Which region of an atom has the most volume (i.e. takes up the most space)?
neutrons
electron cloud
nucleus
protons
29
Particles in an atom with a negative charge are known as _____.
isotopes
protons
neutrons
electrons
30
Which spectrum includes all of the colors of the rainbow?
gamma
x-ray
ultraviolet
visible
31
A violent, whirling wind that moves in a narrow path over land is a ____.
thunderstorm
hurricane
tornado
front
32
Which of the following processes causes formation of clouds?
evaporation
precipitation
runoff
condensation
33
This is the layer of Earth where convection occurs.
mantle
rust
lithosphere
core
34
In the lunar cycle, this is the phase of the moon located between the Sun and Earth.
3rd Quarter
Full Moon
1st Quarter
New Moon
35
A lion hunts and kills gazelle for food. What type of relationship is this?
parasitism
competition
commensalism
predator-prey
36
What are the total number of atoms in the formula below?
15
55
5
44
37
When water droplets in a cloud combine, become too heavy, and fall as rain, it is _______.
evaporation
transpiration
precipitation
condensation
38
What is the unit for force?
Joule (J)
meters/second/second (m/s/s)
Newton (N)
meters/second (m/s)
39
Which of the following is most responsible for removing carbon from the air?
plants
lakes
humans
animals
40
These are factors in an ecosystem that are nonliving and include sunlight and water.
abiotic factors
ecological factors
carbonic factors
biotic factors
41
This element has one energy level and two valence electrons.
Sodium
Helium
Magnesium
Hydrogen
42
The study of ___ is called genetics.
mutation
heredity
pea plants
dominance
43
Which of the following interactions between tectonic plates would produce a mid-ocean ridge?
2 oceanic plates diverging
2 continental plates diverging
2 continental plates converging
2 oceanic plates converging
44
The positively charged particles in an atom are known as ____.
protons
isotopes
neutrons
electrons
45
A variable for comparison that helps to ensure the experiment is valid is ____.
independent
constant
dependent
control
46
Which of the following is an example of a decomposer?
coyote
mushroom
vulture
soil
47
An organzed process used to gather observations and test a hypothesis is a(n) ____.
hypothesis
constant
experiment
control
48
The boundary between a cold and warm air mass is called a _____.
front
climate
flood
storm
49
What two factors give us seasons?
Days & Oceans
Revolution and No Tilt
Revolution & Tilt
Rotation & Revolution
50
What evidence do scientists have to support the idea of sea-floor spreading?
mid-ocean ridges
continents fit like a puzzle
earthquakes
fossils
51
A ____ is a part of the DNA code on a chromosome.
gender
gene
phenotype
genotype
52
Sea and land breezes happen because ___.
air moves more easily over land
land heats and cools more slowly than water
air moves more easily over water
land heats and cools more quickly than water
53
A testable prediction about a possible solution to a problem is called a(n)
conclusion
hypothesis
variable
experiment
54
A ____ pressure system has a counter-clockwise rotation and usually brings rain.
cold
mid-level
high
low
55
Tsunamis are caused by ____.
hot spots
earthquake motion on the ocean floor
fissure eruptions
pyroclastic flows
56
DNA is found in ___ cells.
all
no
sex
sperm
57
Which of the following elements does not combine to form compounds?
Argon
Bromine
Chlorine
Fluorine
58
Which is the thickest layer on Earth?
outer core
crust
inner core
mantle
59
A(n) _____ connects points of equal pressure.
station model
none of the above
isobar
isotherm
60
Which one of the following is not an example of an electromagnetic wave?
red light
gamma rays
x-ray
sound wave
61
As the Earth revolves around the Sun, at which time of year will the days be the longest?
spring
fall
winter
summer
62
In a topographic map, what is shown when contour lines are close together?
river
lake
gradual slope
steep slope
63
Which of the following would be an example of energy flow in and out of an ecosystem?
bear eating a fish
fish eating a tadpole
fish eating a fish
water snake eating a fish
64
Which of the following subatomic particles is neutral?
proton
neutron
nucleus
electron
65
If a car is traveling at 60 km/h for 2 hours, what is the total distance traveled by the car?
30 km
30 km/hr
120 km
120 km/hr
66
The atomic number of an element is equal to the ____.
number of neutrons - protons
number of neutrons + protons
number of protons
number of neutrons
67
Which of the following pieces of lab equipment is used to measure temperature?
Wind vane
Thermometer
Anemometer
Pressure gauge
68
Which of the following graphs is best used to show percentages adding up to 100%?
line graph
bar graph
histogram
circle graph
69
A(n) ____ connects points of equal temperature.
isotherm
isobar
cloud map
station model
70
The process in the water cycle where water from lakes and rivers returns to the atmosphere.
condensation
evaporation
precipitation
sublimation
71
What is the unit for average speed?
Newton (N)
meters / second (m/s)
Joule (J)
meters / second / second (m/s/s)
72
Which of the following features is likely to occur at the convergence of two tectonic plates?
a mid-ocean ridge
an increased amount of earthquake activity
mountains
volcanic islands that shrink over time.
73
2 species of bird consume the same type of insect. These birds have which relationship?
mutualism
predator-prey
competition
parasitism
74
What's the net force resulting from a 5 kg bowling ball accelerating 3 m/s/s?
5 J
15 N
5 N
15 J
75
Igneous rocks form from ______ when it cools.
lava
both
neither
magma