AnswersGCS 2025-2026 Earth Environmental Science CRTopographic Maps

Topographic Maps — Cumulative exam Answers

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1
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Which term defines a star system with two stars?

A
binary star system
B
eclipse star system
C
open cluster star system
D
globular cluster star system
2
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What type of stress occurs when plates move apart?

A
compression
B
faulting
C
shearing
D
tension
3

What is the correct order of star colors from hottest to coolest?

w
white, yellow, red, blue
y
yellow, orange, white, red
r
red, orange, yellow, blue-white
b
blue, white, yellow-white, orange
4

Wanda and Marita are drinking bottles of water. Each girl sounds a different musical note by blowing across the top of her bottle.What is a good hypothesis that could lead to new experimentation?

A
It is more fun to play musical notes with carbonated water than with normal spring water.
B
If the lid on a bottle is tightly closed, then blowing across the top of the bottle will not make a musical note.
C
Blowing across the top of a bottle can make a musical note.
D
If there is less water in the bottle, then the note played is lower because there is more air to move around.
5

What happened to the giant landmass that Wegener described?

A
The pieces remained the same shape over time.
B
The pieces moved quickly to their current locations.
C
The pieces moved toward one another and created mountains.
D
The pieces broke apart and drifted away from one another over time.
6

Which landform rises abruptly from its surroundings and has a rounded or sharp peak?

A
hill
B
mountain
C
plains
D
plateau
7

Scientists believe that some mass extinction events are possibly caused by asteroids, volcanic activity, or climate change. How many mass extinctions have occurred on Earth in the last 4.6 billion years?

A
0
B
1
C
5
D
10
8

Which statement correctly describes terrestrial planets?

A
They are made of mostly rock.
B
They are made of gases.
C
They are small objects of ice and dust.
D
They are very large compared to other planets.
9

In an investigation that uses the scientific method, which step immediately follows asking a question?

A
presenting the results
B
making observations
C
creating a hypothesis
D
designing an experiment
10

Which is a type of star system?

A
dim stars
B
solar system planets
C
wobbling stars
D
globular clusters
11

Which activity describes the use of technology in science?

A
listening to a scientist talk about cells
B
viewing stars through a telescope
C
observing a plant through the bedroom window
D
creating a blank data table in a notebook
12

Which term describes erosion?

A
creates small particles
B
hardens rock fragments
C
transports solid materials
D
dissolves rock components
13

Marc plans to create a model of the solar system for his school’s science fair. He knows the solar system includes many celestial bodies.Which statement identifies a possible limitation of this model?

A
The model will be supported with scientific evidence.
B
The model will include all planets of the solar system.
C
The model will be used to predict planet distances and sizes.
D
The model will oversimplify what the solar system looks like.
14

Which planet is small, with a rocky surface and an atmosphere?

A
Jupiter
B
Neptune
C
Uranus
D
Venus
15

Which phrase describes elevation?

A
the height of a feature above sea level
B
the distance of a feature above the clouds
C
the distance above the lowest point in the area
D
the height of a feature above the nearest mountaintop
16

Why did scientists struggle for thousands of years to accurately describe the solar system?

A
Venus has phases like the moon.
B
Many people spoke Italian and did not understand Latin.
C
The planets appeared to move backward in the sky occasionally.
D
Scientists could not explain why the Sun appeared to rise and set every day.
17

According to the theory of plate tectonics, which is one feature that plates carry?

A
seafloor
B
inner core
C
lower mantle
D
asthenosphere
18

The image shows a cross section of a volcano.

Question illustration
A
1
B
2
C
3
D
4
19

The table shows results of an experiment that was replicated.

Question illustration
A
They are precise and reproducible.
B
They are precise but not reproducible.
C
They are accurate and reproducible.
D
They are accurate but not reproducible.
20

The image shows a volcanic eruption.

Question illustration
A
This eruption is quiet.
B
This eruption is explosive.
C
This eruption was caused by low-viscosity magma.
D
This eruption may set its surroundings on fire.

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