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