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2025 8th Grade Science STAAR Review Flashcards | StudBud
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2025 8th Grade Science STAAR Review
2025 8th Grade Science STAAR Review
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A review to prepare for the 2025 8th Grade Science STAAR
Flashcards
51 cards
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Practice quiz
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Questions
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Answers
1
How does an offshore oil rig sunk into the ocean impact organism in the ocean?
The platform releases chemicals into the area.
The platform destroys all organisms in the area.
The platform is used for future oil research.
The platform provides a habitat for organisms.
2
Which of Newton's laws describes the relationship between mass and force?
Newton's Law of Gravitation
Newton's 2nd Law
Newton's 3rd Law
Newton's 1st Law
3
On a roller coaster, where is the maximum kinetic and potential energy found?
Maximum PE at bottom and maximum KE at the middle
Maximum PE at bottom and maximum KE at top
Maximum PE at top and maximum KE at bottom
Maximum PE at the middle and maximum KE at top
4
Which of these provides extra support for plant cells?
Cell Membrane
Ribosomes
Cell Wall
Flagella
5
Which of the following is an example of a physical change?
milk souring
bread molding
lead melting
candle burning
6
In the chemical reaction shown, the products are best classified as —
two elements
two compounds and one element
two compounds
one element and one compound
7
Counting Atoms
G
J
F
H
8
Counting Atoms
D
A
C
B
9
According to the diagram above, what is occurring as a result of the plate collision?
Subduction--oceanic crust is denser than continental.
A transform boundary is forming.
A mid-ocean ridge is forming.
A divergent boundary is forming.
10
What is the average SPEED shown on this graph and table?
10 m/s
1 m/s
40 m/s
80 m/s
11
Refer to diagram. A neap tide occurs at ____ while a spring tide occurs at ____.
Y and Z; X and W
W and Y; X and Z
X and W; Y and Z
X and Z; W and Y
12
Plant and animal cells
both have cytoplasm, membranes and lysosomes
both have a nucleus, cell wall and vacuoles
do not have anything in common
both have cytoplasm, a nucleus and a cell membrane
13
What is happening in the southern hemisphere?
Spring
Winter
Summer
Fall
14
Which star on the HR Diagram is most luminous?
A
E
C
D
15
What are Kingdom Animalias?
Single cell organisms that eat producers
Multicellular organisms that eat producers
Single cellular organisms that eat micro consumers
Multicellular organisms that eat consumers
16
Why does Earth get more energy from the sun than from all other stars in the universe combined?
The sun is much closer than the other stars.
The sun is much more dense than the other stars.
The sun is much larger than the other stars.
The sun is much hotter than the other stars.
17
The bold line on the map shows the San Andreas Fault which is the result of
crustal plate movement
weathering and erosion
a large glacier
overpopulation
18
A race car is traveling on a racetrack at a constant 150 km/hr. Where is the car accelerating?
Point B
The car is not accelerating.
Point A
Point C
19
Stars are classified according to their
distance from Earth, size, and color
color, brightness, and temperature
distance from Earth, size, and brightness
size, brightness, and temperature
20
Which student correctly identified the geologic process that formed the Mid-Atlantic Ridge?
Student 4
Student 2
Student 3
Student 1
21
The air movement in the picture is best described as an example of
conduction between Earth’s surface and atmosphere above it
convection of temp & pressure differences above land & water
radiation from warm ocean during day and warm land at night
condensation during the day, & evaporation during the night
22
Stars form inside giant clouds of gas and dust. What are giant clouds of gas and dust called?
Nebula
Quasar
Black hole
Super nova
23
According to the above information and diagram, what will be the result?
The box will move to the right with an 8 N force.
The box will move to the right with a 24 N force.
The box will move to the left with a 24 N force
The box will move to the left with an 8 N force.
24
The diagram shows high tides that are higher than normal these tides are called
direct tides
spring tides
opposite tides
neap tides
25
What body system carries nutrients, oxygen, carbon dioxide and waste from the cells?
Nervous System
Respiratory System
Circulatory System
Digestive System
26
Earth’s weather is primarily caused by the
changing distance between Earth and the Sun
drifting of Earth’s crustal plates
gravitational attraction of the Moon
uneven heating of Earth’s surface
27
Which graph illustrates constant speed, slower constant speed & stopped
Neither
Green
Red
28
Which of the following best describes the velocity of an object?
30 m/s east
30 m/s
30 m/s2
30 m east
29
What body system helps break down food?
Respiratory System
Nervous System
Circulatory System
Digestive System
30
Refer to the diagram. Which factor below best explains why Earth experiences seasons?
The location of Earth every three months
The tilt of Earth’s axis and rotation of Earth every 24 hrs
The revolution of Earth around the Sun
The tilt of Earth’s axis and revolution of Earth around Sun
31
New substances formed during a chemical reaction are indicated ―
on the left side of the equation and are called reactants
on the left side of the equation and are called products
on the right side of the equation and are called products
on the right side of the equation and are called reactants
32
In the food web, which of the following transfer the most of energy to other organisms?
Seabirds
Fish
Phytoplankton
Krill
33
Which of these land forms is most likely to be found at a divergent boundary?
Earthquake
Mid-ocean ridge
Mountain
Faultline
34
The type of frontal system that is shown moving through East Texas would be a
warm front
occluded front
cold front
stationary front
35
The air mass over the northwest part of Texas is an area of_____; the weather will be _____.
Low pressure ; stormy
High pressure ; stormy
Low pressure ; clear
High pressure ; clear
36
Where does our sun currently fall on the HR diagram?
Giants
White Dwarfts
Supergiants
Main sequence
37
Which organisms in the food web compete for the same food source in this environment.
Frogs and snakes
Hawks and frogs
Decomposers and grasses.
Grasshopper and snakes
38
Which position is spring in northern hemisphere?
Position 4
Position 2
Position 1
Position 3
39
Which type of evidence was
NOT
used by Alfred Wegener to support his continental drift theory?
Evidence of ancient climatic conditions
Evidence from human remains
Evidence from fossils
Evidence from rocks and landforms
40
Counting Atoms:
4
1
3
2
41
If two tectonic plates begin to slide past each other horizontally, what will form?
a transform boundary
a rift zone
a convergent boundary
a divergent boundary
42
At what point on a roller coaster is kinetic and potential energy equal?
At the bottom of the first hill
Halfway down or up the first hill
At the top of the first hill
At the end
43
How does the Theory of Plate Tectonics explain the location of same fossils at Points A and B?
The animals swam from one continent to the other
Humans transported the animals from point A to point B.
The animals developed independently on both continents.
The continents were once joined together.
44
What is happening in this SPEED vs TIME graph?
Steady Speed
Not Moving
Acceleration (speeding up)
Deceleration (slowing down)
45
Which of the following characteristics describes Kingdom Animalia?
unicellular
multicellular autotrophs
multicellular hetrotrophs
cells contain a cell wall
46
All elements shown, except for hydrogen, are all
metalloids
non – metals
metals
gases
47
Which level of the energy pyramid has the most energy?
producers
decomposers
apex predators
consumers
48
Which body system forms the physical foundation of the body?
nervous
circulatory
integumentary
skeletal
49
In order from
largest to smallest
, which is correct
universe → galaxy → solar system → star → planet
universe → solar system → star → moon → planet
planet → star → solar system → galaxy → universe
galaxy → solar system → universe → star → planet
50
A 5 kg ball is accelerating at 2 m/s
2
while being thrown. How much force was used?
10 N
5 N
20 N
4 N
51
In a car accident, a seat belt helps prevent injuries by applying a force
in the same direction as the car’s motion
greater than the force of the moving car
less than the force of the moving passenger
in the opposite direction of the passenger’s motion
