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NGSS 8th grade review Flashcards | StudBud
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NGSS 8th grade review
NGSS 8th grade review
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Middle School NGSS review of topics covered on state test.
Flashcards
31 cards
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Answers
1
When you add current to an electromagnet what happens?
The electromagnet reverses polarity.
The electromagnetic force becomes stronger.
The electromagnet comes alive.
The electromagnet cools down.
2
Why do whales have fingers?
They evolved from an ancestor with fingers.
So they can wear a ring when they get married.
They help the whale swim faster.
The fingers make the flipper stronger.
3
Which of Newton's Laws does this demonstrate?
Newton's First Law of Motion
Newton's Fourth Law of Motion
Newton's Second Law of Motion
Newton's Third Law of Motion
4
What is the best conclusion from this picture?
Mountains are huge bumps on Earth's surface.
The Earth is a perfect sphere.
The Earth's atmosphere is very thin comparatively.
The Earth's atmosphere stretches to the moon.
5
How do humans influence desired traits in organisms?
Artificial Selection
All of these are correct
Genetically modified organisms (GMOs)
Gene therapy
6
What is NOT true about asexual reproduction?
It requires on one parent.
It only involves females.
There is no genetic variation.
It requires more resources than sexual reproduction.
7
What does the fossil record NOT show about Earth?
Older fossils are found at the bottom of sedimentary rock
There have been mass extinctions that decreased diversity.
Organisms have changed over time.
The Earth is less than 4 billion years old.
8
What order did the lettered rock layers and events occur?
A, B, C, D, E
E, D, C, B, A
C, B, A, D, E
C, B, D, E, A
9
This picture shows how a motor spins. Which of the following is true based on the image?
N is repelled by S.
Opposite poles (N and S) attract.
S is attracted to S.
The S pole has greater electricity.
10
Which of the following situations will increase gravitational attraction the most?
Increase mass and increase distance between objects
Decrease mass and increase distance between objects
Increase mass and decrease distance between objects
Decrease mass and decrease distance between objects
11
What state of matter has the most particle motion here?
liquid
solid
plasma
gas
12
What best describes this picture?
Red light is absorbed. You see red.
All colors but red are absorbed. You see yellow.
Red light is reflected, you see red.
All colors are absorbed. You see all colors.
13
Is this chemical equation balanced or not and why?
Balanced, H is equal
Unbalanced, too few O on the right
Unbalanced, too many H on the right
Balanced, equal H and O
14
China has 1.2 billion people and USA has 300 million people. What can you conclude from this?
USA uses more energy than China
USA uses more energy per capita (person) than China
Global warming is all China's fault
China uses more energy per capita than USA
15
Which result is LEAST likely from a genetic mutation?
neutral effect
beneficial effect
a protein is changed
harmful effect
16
What is the net force acting object B?
7 N
2 N to the right
1 N to the left
1 N to the right
17
Which example in the picture shows light being transmitted?
The one on the right
None of them
The one in the middle
The one on the left
18
What is the main benefit of genetic variation in natural selection?
It increases specialization.
It requires fewer resources.
It is less boring.
It better allows for adaptation.
19
What is true about this picture?
You cannot tell which wave has more energy.
The high amplitude wave has more energy.
Both waves have the same energy.
The low amplitude wave has more energy.
20
At what height will a rollercoaster have the most potential energy?
500 m
20 m
250 m
100 m
21
What conclusion can you most reasonably come to from this graph?
There is no relationship between CO2 and temperature.
Temps may fluctuate, but the overall trend is increasing.
Warming temperatures are causing an increase in CO2.
Humans have nothing to do with global warming.
22
What is true about digital and analog storage?
digital requires more storage space
analog is easier to make copies
digital music is "true sound"
digital copies do not have imperfections
23
Which of the following is untrue about these fictional pentagons based on the picture here?
This shows changes in a species over time.
The oldest fossils are on the bottom.
The top fossils are definitely stronger than the bottom.
Features accumulate over time.
24
What infinity stone is Loki holding here?
Soul Stone
Mind Stone
Space Stone
Reality Stone
25
What can we conclude from this picture?
The water you drink has been drunk many times before.
When nitrogen is eaten, it is gone forever.
Carbon can only be found in the ground.
Nitrogen is only found in the air.
26
Which point has the greatest potential energy?
d
a
c
b
27
If we view the moon from Earth in this picture, what phase would we see?
Full Moon
First Quarter
New Moon
Waxing Gibbous
28
How did these finches probably adapt such a variety of beaks from a common ancestor?
They need a way to tell each other apart.
They each adapted over time to eat different kinds of food.
They were attracted to mates with specific kinds of beaks.
They were randomly dispersed to different islands.
29
Which of the following will DECREASE the kinetic energy of a train?
Make the train go slower.
Make the train go faster.
Make the train more massive.
Make the train less massive.
30
Which of the following does gravity NOT usually play a role in?
The Earth orbiting the Sun
The formation of planets
The formation of galaxies
The transmission of EM waves
31
We know that the continents all used to be connected as Pangaea because:
Common fossils were on land forms that were connected.
Trees that were alive then tell us.
They never move.
Cynognathus fossils swam across the ocean
