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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 10-12

Coastal processes & landforms

Take your time. Show your thinking.

1. 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…
2. 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…
3. What narrow finger of sand or shingle is formed by longshore drift extending out from the coast where the shoreline changes direction at a river mouth: a spit or a sea stack?
What narrow finger of sand… · Coastal processes & landfo…
4. 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…
5. As a cliff retreats inland through repeated undercutting and collapse, what gently sloping rocky ledge is left behind at low tide: a wave-cut platform or a lagoon?
As a cliff retreats inland… · Coastal processes & landfo…
6. 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…
7. 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…
8. In coastal management, what wooden or rock barriers are built down a beach at right angles to the shore to trap sand moved by longshore drift: groynes or lighthouses?
In coastal management, wha… · Coastal processes & landfo…
9. Which type of low-frequency, gentle wave has a strong swash and a weak backwash, building up sandy beaches: a constructive wave or a destructive wave?
Which type of low-frequenc… · Coastal processes & landfo…
10. 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…
11. 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. 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…

12 questions · Seed 44 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 10-12

Coastal processes & landforms

Answers and reasoning. Review before teaching.

1. 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.
2. 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.
3. What narrow finger of sand or shingle is formed by longshore drift extending out from the coast where the shoreline changes direction at a river mouth: a spit or a sea stack?
Spit
Longshore drift continues depositing sand across a bend in the coast, building a long spit often curved at the tip by wind and waves.
4. 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.
5. As a cliff retreats inland through repeated undercutting and collapse, what gently sloping rocky ledge is left behind at low tide: a wave-cut platform or a lagoon?
Wave-cut platform
A wave-cut platform is the broad rock bench exposed at the base of a retreating cliff.
6. 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.
7. 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.
8. In coastal management, what wooden or rock barriers are built down a beach at right angles to the shore to trap sand moved by longshore drift: groynes or lighthouses?
Groynes
Groynes interrupt longshore drift to keep a wide, protective beach in place.
9. Which type of low-frequency, gentle wave has a strong swash and a weak backwash, building up sandy beaches: a constructive wave or a destructive wave?
Constructive wave
Constructive waves deposit more sediment up the beach than they remove.
10. 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.
11. 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. 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.

12 questions · Seed 44 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 10-12

Coastal processes & landforms

Take your time. Show your thinking.

1. 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…
2. 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…
3. What narrow finger of sand or shingle is formed by longshore drift extending out from the coast where the shoreline changes direction at a river mouth: a spit or a sea stack?
What narrow finger of sand… · Coastal processes & landfo…
4. 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…
5. As a cliff retreats inland through repeated undercutting and collapse, what gently sloping rocky ledge is left behind at low tide: a wave-cut platform or a lagoon?
As a cliff retreats inland… · Coastal processes & landfo…
6. 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…
7. 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…
8. In coastal management, what wooden or rock barriers are built down a beach at right angles to the shore to trap sand moved by longshore drift: groynes or lighthouses?
In coastal management, wha… · Coastal processes & landfo…
9. Which type of low-frequency, gentle wave has a strong swash and a weak backwash, building up sandy beaches: a constructive wave or a destructive wave?
Which type of low-frequenc… · Coastal processes & landfo…
10. 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…
11. 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. 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…

12 questions · Seed 44 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 10-12

Coastal processes & landforms

Answers and reasoning. Review before teaching.

1. 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.
2. 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.
3. What narrow finger of sand or shingle is formed by longshore drift extending out from the coast where the shoreline changes direction at a river mouth: a spit or a sea stack?
Spit
Longshore drift continues depositing sand across a bend in the coast, building a long spit often curved at the tip by wind and waves.
4. 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.
5. As a cliff retreats inland through repeated undercutting and collapse, what gently sloping rocky ledge is left behind at low tide: a wave-cut platform or a lagoon?
Wave-cut platform
A wave-cut platform is the broad rock bench exposed at the base of a retreating cliff.
6. 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.
7. 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.
8. In coastal management, what wooden or rock barriers are built down a beach at right angles to the shore to trap sand moved by longshore drift: groynes or lighthouses?
Groynes
Groynes interrupt longshore drift to keep a wide, protective beach in place.
9. Which type of low-frequency, gentle wave has a strong swash and a weak backwash, building up sandy beaches: a constructive wave or a destructive wave?
Constructive wave
Constructive waves deposit more sediment up the beach than they remove.
10. 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.
11. 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. 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.

12 questions · Seed 44 · Age guidance, not curriculum certification