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Earth’s structure & plate boundaries

Examine Earth’s internal layers, tectonic plate boundaries and the rock cycle. Review suitability for your learners before teaching.

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Worksheet StudioPractice pack · Ages 16-18

Earth’s structure & plate boundaries

Take your time. Show your thinking.

1. What class of rock forms when molten magma or lava cools and solidifies (e.g. basalt and granite): igneous or sedimentary?
What class of rock forms w… · Earth’s structure & plate …
2. What do we call the horseshoe-shaped belt around the Pacific Ocean where many earthquakes and volcanoes occur: the Ring of Fire or the Mid-Atlantic Ridge?
What do we call the horses… · Earth’s structure & plate …
3. What drives the slow movement of tectonic plates across Earth’s surface: mantle convection and slab pull, or surface wind patterns?
What drives the slow movem… · Earth’s structure & plate …
4. What type of tectonic plate boundary occurs where two plates move apart and new oceanic crust forms: divergent or convergent?
What type of tectonic plat… · Earth’s structure & plate …
5. What generates Earth’s global magnetic field (magnetosphere): convection of liquid metal in the outer core, or ocean tides?
What generates Earth’s glo… · Earth’s structure & plate …
6. What is the thin, outermost rocky layer of the Earth called: the crust or the inner core?
What is the thin, outermos… · Earth’s structure & plate …
7. What ocean wave can be triggered when a powerful submarine earthquake vertically displaces the seafloor: a tsunami or a spring tide?
What ocean wave can be tri… · Earth’s structure & plate …
8. Which seismic body waves travel fastest through the Earth and can pass through both solids and liquids: P-waves (primary) or S-waves (secondary)?
Which seismic body waves t… · Earth’s structure & plate …
9. Is Earth’s inner core solid or liquid despite its extreme temperature, due to immense pressure?
Is Earth’s inner core soli… · Earth’s structure & plate …
10. What do we call molten rock while it is still beneath Earth’s surface, before it erupts as lava: magma or shale?
What do we call molten roc… · Earth’s structure & plate …
11. Why are fossils almost always found in sedimentary rock rather than igneous rock: molten magma destroys organic remains, or sedimentary rock forms in volcanoes?
Why are fossils almost alw… · Earth’s structure & plate …
12. What type of plate boundary occurs where two plates slide horizontally past each other (such as the San Andreas Fault): transform or divergent?
What type of plate boundar… · Earth’s structure & plate …

12 questions · Seed 104734 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 16-18

Earth’s structure & plate boundaries

Answers and reasoning. Review before teaching.

1. What class of rock forms when molten magma or lava cools and solidifies (e.g. basalt and granite): igneous or sedimentary?
Igneous
Igneous rocks crystallise from molten magma (intrusive) or lava (extrusive).
2. What do we call the horseshoe-shaped belt around the Pacific Ocean where many earthquakes and volcanoes occur: the Ring of Fire or the Mid-Atlantic Ridge?
Ring of Fire
The circum-Pacific Ring of Fire is rimmed by active subduction zones.
3. What drives the slow movement of tectonic plates across Earth’s surface: mantle convection and slab pull, or surface wind patterns?
Mantle convection and slab pull
Thermal convection in the mantle together with gravity-driven slab pull and ridge push move the plates.
4. What type of tectonic plate boundary occurs where two plates move apart and new oceanic crust forms: divergent or convergent?
Divergent
At divergent boundaries (such as mid-ocean ridges), plates pull apart and magma rises to solidify.
5. What generates Earth’s global magnetic field (magnetosphere): convection of liquid metal in the outer core, or ocean tides?
Convection of liquid metal in the outer core
The geodynamo is driven by convective motion of electrically conducting liquid iron in the outer core.
6. What is the thin, outermost rocky layer of the Earth called: the crust or the inner core?
The crust
The crust is Earth’s outermost solid shell, above the mantle.
7. What ocean wave can be triggered when a powerful submarine earthquake vertically displaces the seafloor: a tsunami or a spring tide?
Tsunami
Sudden vertical displacement of the seabed displaces a huge volume of water, generating a tsunami.
8. Which seismic body waves travel fastest through the Earth and can pass through both solids and liquids: P-waves (primary) or S-waves (secondary)?
P-waves (primary)
Compressional P-waves are the fastest seismic waves and travel through both solid rock and liquid core.
9. Is Earth’s inner core solid or liquid despite its extreme temperature, due to immense pressure?
Solid
Crushing pressure at the centre of the Earth keeps the iron-nickel inner core solid.
10. What do we call molten rock while it is still beneath Earth’s surface, before it erupts as lava: magma or shale?
Magma
Molten rock underground is called magma; once it erupts onto the surface it is called lava.
11. Why are fossils almost always found in sedimentary rock rather than igneous rock: molten magma destroys organic remains, or sedimentary rock forms in volcanoes?
Molten magma destroys organic remains
Sedimentary layers gently bury organisms, whereas extreme igneous heat destroys them.
12. What type of plate boundary occurs where two plates slide horizontally past each other (such as the San Andreas Fault): transform or divergent?
Transform
Transform boundaries involve horizontal shear motion without creating or destroying crust.

12 questions · Seed 104734 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 16-18

Earth’s structure & plate boundaries

Take your time. Show your thinking.

1. What class of rock forms when molten magma or lava cools and solidifies (e.g. basalt and granite): igneous or sedimentary?
What class of rock forms w… · Earth’s structure & plate …
2. What do we call the horseshoe-shaped belt around the Pacific Ocean where many earthquakes and volcanoes occur: the Ring of Fire or the Mid-Atlantic Ridge?
What do we call the horses… · Earth’s structure & plate …
3. What drives the slow movement of tectonic plates across Earth’s surface: mantle convection and slab pull, or surface wind patterns?
What drives the slow movem… · Earth’s structure & plate …
4. What type of tectonic plate boundary occurs where two plates move apart and new oceanic crust forms: divergent or convergent?
What type of tectonic plat… · Earth’s structure & plate …
5. What generates Earth’s global magnetic field (magnetosphere): convection of liquid metal in the outer core, or ocean tides?
What generates Earth’s glo… · Earth’s structure & plate …
6. What is the thin, outermost rocky layer of the Earth called: the crust or the inner core?
What is the thin, outermos… · Earth’s structure & plate …
7. What ocean wave can be triggered when a powerful submarine earthquake vertically displaces the seafloor: a tsunami or a spring tide?
What ocean wave can be tri… · Earth’s structure & plate …
8. Which seismic body waves travel fastest through the Earth and can pass through both solids and liquids: P-waves (primary) or S-waves (secondary)?
Which seismic body waves t… · Earth’s structure & plate …
9. Is Earth’s inner core solid or liquid despite its extreme temperature, due to immense pressure?
Is Earth’s inner core soli… · Earth’s structure & plate …
10. What do we call molten rock while it is still beneath Earth’s surface, before it erupts as lava: magma or shale?
What do we call molten roc… · Earth’s structure & plate …
11. Why are fossils almost always found in sedimentary rock rather than igneous rock: molten magma destroys organic remains, or sedimentary rock forms in volcanoes?
Why are fossils almost alw… · Earth’s structure & plate …
12. What type of plate boundary occurs where two plates slide horizontally past each other (such as the San Andreas Fault): transform or divergent?
What type of plate boundar… · Earth’s structure & plate …

12 questions · Seed 104734 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 16-18

Earth’s structure & plate boundaries

Answers and reasoning. Review before teaching.

1. What class of rock forms when molten magma or lava cools and solidifies (e.g. basalt and granite): igneous or sedimentary?
Igneous
Igneous rocks crystallise from molten magma (intrusive) or lava (extrusive).
2. What do we call the horseshoe-shaped belt around the Pacific Ocean where many earthquakes and volcanoes occur: the Ring of Fire or the Mid-Atlantic Ridge?
Ring of Fire
The circum-Pacific Ring of Fire is rimmed by active subduction zones.
3. What drives the slow movement of tectonic plates across Earth’s surface: mantle convection and slab pull, or surface wind patterns?
Mantle convection and slab pull
Thermal convection in the mantle together with gravity-driven slab pull and ridge push move the plates.
4. What type of tectonic plate boundary occurs where two plates move apart and new oceanic crust forms: divergent or convergent?
Divergent
At divergent boundaries (such as mid-ocean ridges), plates pull apart and magma rises to solidify.
5. What generates Earth’s global magnetic field (magnetosphere): convection of liquid metal in the outer core, or ocean tides?
Convection of liquid metal in the outer core
The geodynamo is driven by convective motion of electrically conducting liquid iron in the outer core.
6. What is the thin, outermost rocky layer of the Earth called: the crust or the inner core?
The crust
The crust is Earth’s outermost solid shell, above the mantle.
7. What ocean wave can be triggered when a powerful submarine earthquake vertically displaces the seafloor: a tsunami or a spring tide?
Tsunami
Sudden vertical displacement of the seabed displaces a huge volume of water, generating a tsunami.
8. Which seismic body waves travel fastest through the Earth and can pass through both solids and liquids: P-waves (primary) or S-waves (secondary)?
P-waves (primary)
Compressional P-waves are the fastest seismic waves and travel through both solid rock and liquid core.
9. Is Earth’s inner core solid or liquid despite its extreme temperature, due to immense pressure?
Solid
Crushing pressure at the centre of the Earth keeps the iron-nickel inner core solid.
10. What do we call molten rock while it is still beneath Earth’s surface, before it erupts as lava: magma or shale?
Magma
Molten rock underground is called magma; once it erupts onto the surface it is called lava.
11. Why are fossils almost always found in sedimentary rock rather than igneous rock: molten magma destroys organic remains, or sedimentary rock forms in volcanoes?
Molten magma destroys organic remains
Sedimentary layers gently bury organisms, whereas extreme igneous heat destroys them.
12. What type of plate boundary occurs where two plates slide horizontally past each other (such as the San Andreas Fault): transform or divergent?
Transform
Transform boundaries involve horizontal shear motion without creating or destroying crust.

12 questions · Seed 104734 · Age guidance, not curriculum certification