1. Plate tectonics is the theory that Earth's outer layer is made up of plates that have moved over Earth's history.
2. Volcanoes are often found along plate boundaries.
3. Earthquakes only happen in the middle of continents.
4. All continents were once joined together in a supercontinent called Pangea.
5. Convection currents in the Earth's core cause the tectonic plates to move.
✏️ 2. Fill in the Blanks
1. The Earth's outermost solid layer is called the .
2. Large pieces of the Earth's lithosphere are called tectonic .
3. When two plates slide past each other, it often causes an .
4. Molten rock beneath the Earth's surface is known as .
5. The process where one plate slides beneath another at a convergent boundary is called .
🔗 3. Matching
« The scientific theory explaining how Earth's surface is broken into large, moving plates.
« The outermost solid layer of the Earth.
« The thick layer of solid rock between the crust and the core, where convection currents occur.
« An opening in the Earth's crust where molten rock, ash, and gases escape.
« A sudden shaking of the ground caused by the movement of tectonic plates.
✍️ 4. Short Answer Questions
1. What are the three main types of plate boundaries?
💡 Suggested Answer: The three main types of plate boundaries are divergent, convergent, and transform boundaries.
2. Name one natural event that can occur at a plate boundary.
💡 Suggested Answer: One natural event that can occur at a plate boundary is an earthquake (or a volcanic eruption, or mountain formation).
🎯 5. Multiple Choice
1. Which of the following is NOT a type of plate boundary?
2. What causes the tectonic plates to move?
3. What supercontinent existed millions of years ago, according to the theory of plate tectonics?
📝 6. Open-Ended Questions
1. Explain what happens at a divergent plate boundary.
💡 Solution Steps:
At a divergent plate boundary, two tectonic plates move away from each other. This pulling apart allows molten rock (magma) from the Earth's mantle to rise to the surface, creating new crust. This process often forms mid-ocean ridges and rift valleys. A well-known example is the Mid-Atlantic Ridge.
2. Describe how mountains can form due to plate tectonics.
💡 Solution Steps:
Mountains can form in several ways due to plate tectonics, but most commonly, they form at convergent plate boundaries. When two continental plates collide, neither plate can easily sink beneath the other. Instead, the immense pressure causes the Earth's crust to buckle, fold, and uplift, creating towering mountain ranges like the Himalayas.
3. Why are earthquakes more common in some areas of the world than others?
💡 Solution Steps:
Earthquakes are more common in specific areas because these regions are typically located along plate boundaries. Tectonic plates are constantly moving and interacting by colliding, sliding past each other, or pulling apart. As they move, stress builds up along the plate boundaries. When this stress becomes too great, it is suddenly released, causing the ground to shake, which we experience as an earthquake. Areas far from these active plate boundaries experience fewer earthquakes.
Name Surname: .................................. Date: .... / .... / 202...
Plate Tectonics Worksheet
SCORE
A. True (T) / False (F)
( .... )
Plate tectonics is the theory that Earth's outer layer is made up of plates that have moved over Earth's history.
( .... )
Volcanoes are often found along plate boundaries.
( .... )
Earthquakes only happen in the middle of continents.
( .... )
All continents were once joined together in a supercontinent called Pangea.
( .... )
Convection currents in the Earth's core cause the tectonic plates to move.
B. Fill in the Blanks
1)
The Earth's outermost solid layer is called the .....................
2)
Large pieces of the Earth's lithosphere are called tectonic .....................
3)
When two plates slide past each other, it often causes an .....................
4)
Molten rock beneath the Earth's surface is known as .....................
5)
The process where one plate slides beneath another at a convergent boundary is called .....................
C. Matching Concepts
( .... )
The scientific theory explaining how Earth's surface is broken into large, moving plates.
- Earthquake
( .... )
The outermost solid layer of the Earth.
- Volcano
( .... )
The thick layer of solid rock between the crust and the core, where convection currents occur.
- Mantle
( .... )
An opening in the Earth's crust where molten rock, ash, and gases escape.
- Crust
( .... )
A sudden shaking of the ground caused by the movement of tectonic plates.
- Plate Tectonics
D. Short Answer Questions
1)
What are the three main types of plate boundaries?
2)
Name one natural event that can occur at a plate boundary.
E. Multiple Choice Questions
1)
Which of the following is NOT a type of plate boundary?
A) Divergent boundaryB) Convergent boundaryC) Transform boundaryD) Subduction boundary
2)
What causes the tectonic plates to move?
A) Wind and ocean currentsB) Convection currents in the mantleC) The sun's gravityD) Earth's rotation
3)
What supercontinent existed millions of years ago, according to the theory of plate tectonics?
A) GondwanaB) LaurasiaC) PangeaD) Eurasia
F. Open-Ended Questions
1)
Explain what happens at a divergent plate boundary.
2)
Describe how mountains can form due to plate tectonics.
3)
Why are earthquakes more common in some areas of the world than others?