WorksheetsDynamic Earth Unit 3 Science
Total questions: 25
Worksheet time: 13mins
Sophia was studying with Maalik about the layers of the Earth. They were given several different statements about the layers. Which statement about the layers would they identify as correct?
The outer core is less than 70 km in thickness.
The crust assists in forming Earth’s magnetic field.
The mantle is denser than the crust.
Pressure increases when moving from the core to the crust.
What may occur when convergent boundaries interact?
formation of island chains
creation of mid-ocean ridges
creation of convection currents
formation of rift valleys
Which indicates how evidence of climate change supports the theory of continental drift?
coal fields in several continents
volcano formation
glacial evidence found in South Africa
folded mountains in Africa and South America
Which statement best describes the theory of plate tectonics?
Plates sometimes move closer to one another.
Sections of Earth that shift are part of Earth’s asthenosphere.
Sections of Earth’s continents are in slow, constant movement.
Parts of the ocean floor move as they are carried by rift valleys.
Which feature forms when magma cools beneath Earth’s surface?
geysers
calderas
batholiths
vents
Which is one piece of evidence of seafloor spreading?
fossil material
continent material
drilled core samples
ocean water samples
Which statement describes one event that happens at deep-ocean trenches?
Crust is formed.
Mountains are formed.
Seafloor spreading occurs.
Denser plates slide under lighter plates.
When were Earth’s landmasses first recognizable as the continents we know today?
10 million years ago
135 million years ago
180 million years ago
300 million years ago
Which is one step that geologists use to find the epicenter of an earthquake?
They look at data from at least one seismograph.
They measure the difference between arrival of P waves and S waves.
They draw circles around the epicenter from three locations.
They obtain information about the intensity of earthquakes from seismographs.
Which increases along faults and leads to rock breaking?
damage
earthquake
focus
stress
Which statement describes the damage that results from earthquakes?
Amount of damage can be used to determine intensity.
Damage can be measured using the Richter scale.
The amount of damage increases as magnitude decreases.
Earthquakes that cause maximum damage are the most common.
Which statement describes one of Wegener’s ideas that contributed to the theory of continental drift?
The continents drifted apart due to repeated meteor impacts.
The continents were once connected as one landmass.
The continents have moved apart very quickly due to earthquakes.
The continents are magnetically pulled toward or pushed away from one another.
What does the presence of new rock near an oceanic ridge indicate?
There is always a deep-sea trench underneath.
There is evidence of seafloor spreading.
They are made from oceanic crust.
They have iron oriented in different directions.
Which statement describes seismic waves?
They carry energy.
They move in one direction.
They originate from the epicenter.
They only vibrate at Earth’s surface.
What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?
gravity
water flow
expanding gases
convergent boundaries
How did Wegener explain why fossils of land animals were found on continents that are across oceans from one another?
Animals evolved separately on each continent.
Land bridges existed between the continents.
Animals swam across the ocean to new continents.
Continents were once one landmass and have drifted apart.
Which feature of Earth is created at mid-ocean ridges?
new island chain
new underwater caves
new continents
new ocean floor
In which layer of the Earth does the motion of the convection currents drive plate movement?
mantle
outer core
inner core
lithosphere
How do geologists study direct evidence of Earth’s interior?
by collecting drill core samples of Earth’s crust
by measuring seismic wave activity
by analyzing how living things survive
by recording changes in climate patterns
Which is one type of evidence that geologists usually study?
location of Earth in outer space
waves that move through Earth
interactions between living things on Earth
diversity of life found on Earth
Into which layer of the Earth do plate boundaries extend?
outer core
lithosphere
lower mantle
asthenosphere
Study the diagram showing the range of temperature in the Earth’s layers.
Which temperature most likely corresponds to the asthenosphere?
1,613°C
2,521°C
3,628°C
6,217°C
This image shows a volcanic eruption in Hawaii with lava flowing into the sea.
Which statement best describes this eruption?
Its magma is high in silica.
Its magma has low viscosity.
Its gases are released in rapid bursts.
Its lava came from an explosive eruption.
Which plate forms a boundary with the African Plate?
Pacific
South American
Nazca
Philippine
The image shows the Great Rift Valley in Africa, an example of a rift valley.
Which statement best describes how the Great Rift Valley in Africa formed?
The rift valley formed when the crust pulled apart.
The rift valley formed due to subduction.
The rift valley formed similarly to an island arc.
The rift valley formed at a convergent boundary.
