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Coastal processes & landforms

Explore constructive and destructive waves, longshore drift, headlands, spits, atolls and coastal defences. Review suitability for your learners before teaching.

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Worksheet StudioPractice pack · Ages 13-15

Coastal processes & landforms

Take your time. Show your thinking.

1. When waves erode the base of a cliff between high-tide and low-tide levels, what undercut indentation is carved into the foot of the cliff: a wave-cut notch or a sand spit?
When waves erode the base … · Coastal processes & landfo…
2. Which type of steep, high-energy storm wave has a weak swash and a powerful backwash that erodes beaches: a destructive wave or a constructive wave?
Which type of steep, high-… · Coastal processes & landfo…
3. What is the forward rush of foaming water up a beach after a wave breaks: swash or backwash?
What is the forward rush o… · Coastal processes & landfo…
4. What is “beach nourishment” (beach replenishment) as a soft-engineering coastal defence: pumping or trucking sand onto an eroding beach to widen it naturally, or building a concrete tower?
“beach nourishment” · Coastal processes & landfo…
5. What coastal deposition landform is a ridge of sand or shingle that links an offshore island to the mainland: a tombolo or a blowhole?
What coastal deposition la… · Coastal processes & landfo…
6. What is the return flow of water draining back down the beach toward the sea under gravity: backwash or swash?
What is the return flow of… · Coastal processes & landfo…
7. What is the correct sequence of landforms created as waves erode a weakness in a rocky headland: Crack → Cave → Arch → Stack → Stump, or Stack → Arch → Cave → Crack?
What is the correct sequen… · Coastal processes & landfo…
8. Why do headlands and bays form along a discordant coastline: alternating bands of hard rock (which erodes slowly into headlands) and soft rock (which erodes rapidly into bays) meet the coast, or all rocks have identical hardness?
Why do headlands and bays … · Coastal processes & landfo…
9. What sheltered, muddy coastal wetland forms in calm river estuaries behind spits where tidal water slows down and deposits fine silt and clay: a saltmarsh (or mudflat) or a sea arch?
What sheltered, muddy coas… · Coastal processes & landfo…
10. What is the zigzag movement of sand and shingle along a coastline caused by waves approaching the beach at an oblique angle: longshore drift or continental drift?
What is the zigzag movemen… · Coastal processes & landfo…
11. What piles of large, heavy granite boulders placed at the foot of a cliff or sea wall break up incoming waves and absorb their energy: rock armour (riprap) or sand dunes?
What piles of large, heavy… · Coastal processes & landfo…
12. In tropical oceans, what ring-shaped coral reef encloses a central lagoon after the central volcanic island has gradually subsided beneath the sea: an atoll or a fjord?
In tropical oceans, what r… · Coastal processes & landfo…

12 questions · Seed 51 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 13-15

Coastal processes & landforms

Answers and reasoning. Review before teaching.

1. When waves erode the base of a cliff between high-tide and low-tide levels, what undercut indentation is carved into the foot of the cliff: a wave-cut notch or a sand spit?
Wave-cut notch
Continued undercutting at the wave-cut notch causes the overhanging cliff above to collapse.
2. Which type of steep, high-energy storm wave has a weak swash and a powerful backwash that erodes beaches: a destructive wave or a constructive wave?
Destructive wave
Destructive waves scour sediment off the beach and hurl water against cliffs.
3. What is the forward rush of foaming water up a beach after a wave breaks: swash or backwash?
Swash
Swash carries sand and shingle up the beach slope in the direction of the breaking wave.
4. What is “beach nourishment” (beach replenishment) as a soft-engineering coastal defence: pumping or trucking sand onto an eroding beach to widen it naturally, or building a concrete tower?
Pumping or trucking sand onto an eroding beach to widen it naturally
A wider beach absorbs wave energy before waves reach the backshore, while keeping a natural appearance.
5. What coastal deposition landform is a ridge of sand or shingle that links an offshore island to the mainland: a tombolo or a blowhole?
Tombolo
Wave refraction around an nearshore island deposits a sand or shingle bridge called a tombolo.
6. What is the return flow of water draining back down the beach toward the sea under gravity: backwash or swash?
Backwash
Backwash flows straight down the beach slope at right angles to the shoreline.
7. What is the correct sequence of landforms created as waves erode a weakness in a rocky headland: Crack → Cave → Arch → Stack → Stump, or Stack → Arch → Cave → Crack?
Crack → Cave → Arch → Stack → Stump
Waves widen a crack into a sea cave, cut through the headland to form an arch, collapse the arch roof to leave a stack, and erode the stack into a stump.
8. Why do headlands and bays form along a discordant coastline: alternating bands of hard rock (which erodes slowly into headlands) and soft rock (which erodes rapidly into bays) meet the coast, or all rocks have identical hardness?
Alternating bands of hard rock (which erodes slowly into headlands) and soft rock (which erodes rapidly into bays) meet the coast
Differential erosion leaves resistant rock jutting out as headlands while softer clay or sand is hollowed into sheltered bays.
9. What sheltered, muddy coastal wetland forms in calm river estuaries behind spits where tidal water slows down and deposits fine silt and clay: a saltmarsh (or mudflat) or a sea arch?
Saltmarsh (or mudflat)
Salt-tolerant plants (halophytes) colonise tidal mudflats, trapping more silt to build a saltmarsh.
10. What is the zigzag movement of sand and shingle along a coastline caused by waves approaching the beach at an oblique angle: longshore drift or continental drift?
Longshore drift
Swash moves sediment up the beach at an angle and backwash pulls it straight down, transporting material along the shore.
11. What piles of large, heavy granite boulders placed at the foot of a cliff or sea wall break up incoming waves and absorb their energy: rock armour (riprap) or sand dunes?
Rock armour (riprap)
Gaps between the large boulders dissipate wave energy.
12. In tropical oceans, what ring-shaped coral reef encloses a central lagoon after the central volcanic island has gradually subsided beneath the sea: an atoll or a fjord?
Atoll
As a volcanic island slowly sinks, upward-growing fringing coral reefs evolve into a barrier reef and finally a ring-shaped atoll.

12 questions · Seed 51 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 13-15

Coastal processes & landforms

Take your time. Show your thinking.

1. When waves erode the base of a cliff between high-tide and low-tide levels, what undercut indentation is carved into the foot of the cliff: a wave-cut notch or a sand spit?
When waves erode the base … · Coastal processes & landfo…
2. Which type of steep, high-energy storm wave has a weak swash and a powerful backwash that erodes beaches: a destructive wave or a constructive wave?
Which type of steep, high-… · Coastal processes & landfo…
3. What is the forward rush of foaming water up a beach after a wave breaks: swash or backwash?
What is the forward rush o… · Coastal processes & landfo…
4. What is “beach nourishment” (beach replenishment) as a soft-engineering coastal defence: pumping or trucking sand onto an eroding beach to widen it naturally, or building a concrete tower?
“beach nourishment” · Coastal processes & landfo…
5. What coastal deposition landform is a ridge of sand or shingle that links an offshore island to the mainland: a tombolo or a blowhole?
What coastal deposition la… · Coastal processes & landfo…
6. What is the return flow of water draining back down the beach toward the sea under gravity: backwash or swash?
What is the return flow of… · Coastal processes & landfo…
7. What is the correct sequence of landforms created as waves erode a weakness in a rocky headland: Crack → Cave → Arch → Stack → Stump, or Stack → Arch → Cave → Crack?
What is the correct sequen… · Coastal processes & landfo…
8. Why do headlands and bays form along a discordant coastline: alternating bands of hard rock (which erodes slowly into headlands) and soft rock (which erodes rapidly into bays) meet the coast, or all rocks have identical hardness?
Why do headlands and bays … · Coastal processes & landfo…
9. What sheltered, muddy coastal wetland forms in calm river estuaries behind spits where tidal water slows down and deposits fine silt and clay: a saltmarsh (or mudflat) or a sea arch?
What sheltered, muddy coas… · Coastal processes & landfo…
10. What is the zigzag movement of sand and shingle along a coastline caused by waves approaching the beach at an oblique angle: longshore drift or continental drift?
What is the zigzag movemen… · Coastal processes & landfo…
11. What piles of large, heavy granite boulders placed at the foot of a cliff or sea wall break up incoming waves and absorb their energy: rock armour (riprap) or sand dunes?
What piles of large, heavy… · Coastal processes & landfo…
12. In tropical oceans, what ring-shaped coral reef encloses a central lagoon after the central volcanic island has gradually subsided beneath the sea: an atoll or a fjord?
In tropical oceans, what r… · Coastal processes & landfo…

12 questions · Seed 51 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 13-15

Coastal processes & landforms

Answers and reasoning. Review before teaching.

1. When waves erode the base of a cliff between high-tide and low-tide levels, what undercut indentation is carved into the foot of the cliff: a wave-cut notch or a sand spit?
Wave-cut notch
Continued undercutting at the wave-cut notch causes the overhanging cliff above to collapse.
2. Which type of steep, high-energy storm wave has a weak swash and a powerful backwash that erodes beaches: a destructive wave or a constructive wave?
Destructive wave
Destructive waves scour sediment off the beach and hurl water against cliffs.
3. What is the forward rush of foaming water up a beach after a wave breaks: swash or backwash?
Swash
Swash carries sand and shingle up the beach slope in the direction of the breaking wave.
4. What is “beach nourishment” (beach replenishment) as a soft-engineering coastal defence: pumping or trucking sand onto an eroding beach to widen it naturally, or building a concrete tower?
Pumping or trucking sand onto an eroding beach to widen it naturally
A wider beach absorbs wave energy before waves reach the backshore, while keeping a natural appearance.
5. What coastal deposition landform is a ridge of sand or shingle that links an offshore island to the mainland: a tombolo or a blowhole?
Tombolo
Wave refraction around an nearshore island deposits a sand or shingle bridge called a tombolo.
6. What is the return flow of water draining back down the beach toward the sea under gravity: backwash or swash?
Backwash
Backwash flows straight down the beach slope at right angles to the shoreline.
7. What is the correct sequence of landforms created as waves erode a weakness in a rocky headland: Crack → Cave → Arch → Stack → Stump, or Stack → Arch → Cave → Crack?
Crack → Cave → Arch → Stack → Stump
Waves widen a crack into a sea cave, cut through the headland to form an arch, collapse the arch roof to leave a stack, and erode the stack into a stump.
8. Why do headlands and bays form along a discordant coastline: alternating bands of hard rock (which erodes slowly into headlands) and soft rock (which erodes rapidly into bays) meet the coast, or all rocks have identical hardness?
Alternating bands of hard rock (which erodes slowly into headlands) and soft rock (which erodes rapidly into bays) meet the coast
Differential erosion leaves resistant rock jutting out as headlands while softer clay or sand is hollowed into sheltered bays.
9. What sheltered, muddy coastal wetland forms in calm river estuaries behind spits where tidal water slows down and deposits fine silt and clay: a saltmarsh (or mudflat) or a sea arch?
Saltmarsh (or mudflat)
Salt-tolerant plants (halophytes) colonise tidal mudflats, trapping more silt to build a saltmarsh.
10. What is the zigzag movement of sand and shingle along a coastline caused by waves approaching the beach at an oblique angle: longshore drift or continental drift?
Longshore drift
Swash moves sediment up the beach at an angle and backwash pulls it straight down, transporting material along the shore.
11. What piles of large, heavy granite boulders placed at the foot of a cliff or sea wall break up incoming waves and absorb their energy: rock armour (riprap) or sand dunes?
Rock armour (riprap)
Gaps between the large boulders dissipate wave energy.
12. In tropical oceans, what ring-shaped coral reef encloses a central lagoon after the central volcanic island has gradually subsided beneath the sea: an atoll or a fjord?
Atoll
As a volcanic island slowly sinks, upward-growing fringing coral reefs evolve into a barrier reef and finally a ring-shaped atoll.

12 questions · Seed 51 · Age guidance, not curriculum certification