Which of the following describes a transform boundary?

two plates slide past one another in opposite directions

Name the layers of the Earth from least to most dense.

Crust, mantle, outer core, inner core

The path of a seismic wave changes at the boundaries of each layer of Earth because

Each layer has different properties

What might scientists conclude based on this map?

South America and Africa shifted over time, South America and Africa were once closer

What causes tectonic plates to move?

convection currents in the mantle

Convection currents in the mantle are created as _______ magma sinks and ________ magma rises.

Cooler, warmer, more dense, less dense

What type of boundary is represented by the picture?

oceanic-oceanic divergent boundary

What type of plate boundary is represented in the picture?

Oceanic - oceanic convergent boundary

Which of the following statements about tectonic plates is true?

Tectonic plates can contain oceanic and continental crust.

What is a difference between p waves and s waves?

P waves travel through liquids, and s waves don't

Which of the following explain why oceanic crust sinks below continental crust?

Ocean crust is more dense than continental crust

Based on the map, volcanoes most commonly form

Near tectonic plate boundaries.

How do scientists research Earth's core?

People study seismic waves from earthquakes.

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Earth Science Review

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Plate Tectonics Review for 8th Grade.

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Questions 26

Answers

1
Which of the following describes a transform boundary?
two plates slide past one another in opposite directions
two plates move in the same direction at different speeds
two plates slide past one another in the same direction
two plates move in the same direction at the same speed
2
Where is old crust destroyed?
Mountain Range
Mid ocean ridge
Subduction zone
Rift valley
3
The Hawaiian Islands were formed from what?
A divergent Boundary
A hot spot
A transform boundary
A convergent boundary
4
Which of the following is evidence that the continents have moved over time?
all of the above
glacier striations found on continents with warm climates
similar land features on different continents
fossils of species found on multiple continents
5
Where is new crust formed?
Rift Valley
Mid Ocean Ridge
Subduction Zone
Mountain range
6
Name the layers of the Earth from least to most dense.
Inner core, mantle, outer core, crust
Inner core, outer core, mantle, crust
Crust, mantle, inner core, outer core
Crust, mantle, outer core, inner core
7
The path of a seismic wave changes at the boundaries of each layer of Earth because
Seismic waves change directions every few km
Each layer has a different temperature
Each layer has different properties
Each layer is a different size
8
What might scientists conclude based on this map?
South America and Africa shifted over time
South America and Africa have always been in the same place
South America and Africa were once closer
Those animals had wings to fly from one place to another
9
Which of the following is formed at a continental-continental convergent boundary?
Mountains
All of the above
Volcanoes
Trenches
10
What causes tectonic plates to move?
Wind pushed the plates
convection currents in the crust
Earthquakes
convection currents in the mantle
11
Convection currents in the mantle are created as _______ magma sinks and ________ magma rises.
Cooler, warmer
less dense, more dense
warmer, cooler
more dense, less dense
12
The oldest rocks are closest to the mid-ocean ridge.
False
True
There are rocks on the ocean floor?
All rocks on the ocean floor are the same age
13
The __________ is divided into pieces called tectonic plates.
Asthenosphere
Lithosphere
Mantle
Mesosphere
14
The deeper into the mantle, the greater the pressure. As a seismic wave goes deeper
The wave's speed decreses
The wave's frequency decreases
The wave's frequency increases
The wave's speed increases
15
What type of boundary is represented by the picture?
oceanic-oceanic divergent boundary
continental-continental convergent boundary
transform boundary
Oceanic- oceanic convergent boundary
16
What type of plate boundary is represented in the picture?
Oceanic - oceanic convergent boundary
transform boundary
Oceanic - oceanic divergent boundary
Continental - continental convergent boundary
17
Which kind of crust is younger?
Oceanic Crust
They are the same age
There is no such thing as oceanic crust
Continental Crust
18
Which of the following statements about tectonic plates is true?
Tectonic plates can contain oceanic and continental crust.
Tectonic plates can only contain continental crust.
Tectonic plates are not surrounded by other tectonic plates.
Tectonic plates can only contain oceanic crust.
19
Which of the following is created at an oceanic-oceanic divergent boundary?
Rift Valley
Mid Ocean Ridge
Trench
All of the above
20
Which of the following is evidence proving the continents have moved?
all of the above
Puzzle like fit of continent edges
Magnetic reversals on the ocean floor
Freshwater reptiles found on continents separated by ocean
21
What is a difference between p waves and s waves?
There is no difference
P waves travel through liquids, and s waves don't
S waves are seismic waves and P waves aren't
S waves travel through liquids and P waves don't
22
Mid-ocean ridges form along cracks in the oceanic crust.
False
They can form along cracks on land too
True
What's a mid ocean ridge?
23
Which of the following explain why oceanic crust sinks below continental crust?
Ocean crust is more dense than continental crust
Ocean crust is less dense than continental crust
Ocean crust is thinner than continental crust
ocean crust is thicker than continental crust
24
Which city on the map is most likely to experience a major earthquake?
New York
Paris
Juneau
Rio De Janeiro
25
Based on the map, volcanoes most commonly form
In Earth's Polar Regions.
In the middle of tectonic plates
Near tectonic plate boundaries.
Along Earth's equator
26
How do scientists research Earth's core?
People collect rock samples to study.
People send a robot to Earth’s core.
People study seismic waves from earthquakes.
People use machinery to dig to Earth’s core.

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