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Grade 4 Reading Comprehension
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Cause & Effect
Cause & Effect Printables
Cause & Effect 35 free to print or download.
35 printables
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Cause & Effect
Name
Score
Draw a line from each cause to what happened (the effect).
Cause
Effect
Pressure built up under the volcano,
so the glacier carved a valley.
The Sun flung out particles,
so it erupted.
The ocean grew too warm,
so the auroras glowed.
Gravity pulled the ice downhill,
so the coral died.
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Reading Worksheet
Cause & Effect: Science
Ages 8–11
♡
Cause & Effect
Name
Score
Draw a line from each cause to what happened (the effect).
Cause
Effect
Pip helped too fast,
so the students never learned.
A cramp seized Sofia’s leg,
so she slowed down.
The wind tore Mei’s lantern,
so they agreed on rules.
The friends listened and voted,
so it might sink.
📖
Reading Worksheet
Cause & Effect: Stories
Ages 8–11
♡
Cause & Effect
Name
Score
Draw a line from each cause to what happened (the effect).
Cause
Effect
A bat squeaked,
so an echo returned.
Autumn arrived,
so it danced for the hive.
A scout found flowers,
so seeds came from the vault.
A crop was lost,
so the monarchs flew south.
📖
Reading Worksheet
Cause & Effect: Nature
Ages 8–11
♡
Cause & Effect: The Robot That Learned to Wait
Name
Score
Explain why each thing happened.
The Robot That Learned to Wait
In Mr. Okafor’s classroom sat a small robot named Pip that loved to help.
The trouble was that Pip helped too fast, finishing tasks before anyone could try.
When a student struggled to tie a shoe, Pip zoomed over and tied it in a blink.
The students groaned; they never got the chance to learn anything themselves.
Mr. Okafor gently reprogrammed Pip with a single new rule: count to twenty first.
Now Pip waited, offering a hint only when a student was truly stuck.
Soon the whole class was learning more, and Pip was prouder than ever.
1) Why were the students frustrated with Pip?
2) What lesson does the story teach?
📖
Reading Worksheet
Cause & Effect: The Robot That Learned to Wait
Ages 8–11
♡
Cause & Effect: The Tide Pool Detective
Name
Score
Explain why each thing happened.
The Tide Pool Detective
Every summer, Nadia explored the rocky tide pools below her grandmother’s house.
One morning she found a pool where all the small crabs had vanished.
Nadia decided to solve the mystery like a real scientist.
She visited the pool at the same time for a week and wrote down what she saw.
On the fourth day, she spotted a hungry octopus hiding beneath a ledge.
The octopus crept out at low tide to hunt the crabs, then slipped away.
Nadia realized that careful observation, not luck, had solved the case.
1) Why did Nadia visit at the same time each day?
2) What does the story say about solving problems?
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Reading Worksheet
Cause & Effect: The Tide Pool Detective
Ages 8–11
♡
Cause & Effect: The Lantern Festival
Name
Score
Explain why each thing happened.
The Lantern Festival
Every winter, Mei’s village lit hundreds of paper lanterns along the river.
This year Mei was finally old enough to make and launch her very own.
She painted her lantern with a golden fish for good luck.
But as she carried it to the water, a gust of wind tore a hole in the paper.
Mei’s eyes filled with tears; her lantern would surely sink.
Her grandfather knelt beside her and helped her patch it with a bright red square.
When Mei set the mended lantern afloat, it glowed brighter than all the rest.
1) Why did Mei think her lantern would sink?
2) Why did the mended lantern feel special?
📖
Reading Worksheet
Cause & Effect: The Lantern Festival
Ages 8–11
♡
Cause & Effect: The Clubhouse Vote
Name
Score
Explain why each thing happened.
The Clubhouse Vote
The four friends had finally finished building their treehouse clubhouse.
Now they argued about the most important question: what were the rules?
Dev wanted no rules at all, so anyone could do anything.
Priya worried that without rules, the little ones would get hurt.
Instead of shouting, they decided to write ideas down and vote.
Together they agreed on three fair rules that everyone could live with.
The friends learned that listening and voting worked better than arguing.
1) Why did Priya want some rules?
2) Why did voting work better than arguing?
📖
Reading Worksheet
Cause & Effect: The Clubhouse Vote
Ages 8–11
♡
Cause & Effect: The Last Mile
Name
Score
Explain why each thing happened.
The Last Mile
Ten-year-old Sofia had trained all spring for the community fun run.
On race day her legs felt strong until the very last, longest mile.
A sharp cramp seized her calf and she slowed to a limping walk.
Ahead, she could see runners she had passed now pulling away.
She wanted to quit, but she remembered all the mornings she had practised.
Breathing slowly, she pushed through the pain one careful step at a time.
Sofia did not finish first, but crossing that line felt like a victory.
1) Why didn’t Sofia quit?
2) Why did finishing feel like a victory even though she wasn’t first?
📖
Reading Worksheet
Cause & Effect: The Last Mile
Ages 8–11
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Cause & Effect: The Waggle Dance
Name
Score
Explain why each thing happened.
The Waggle Dance
When a honeybee discovers a rich patch of flowers, it faces a problem.
It must somehow tell the rest of the hive exactly where to find the food.
Bees cannot speak, so a scout uses a special movement called the waggle dance.
Back at the hive, it runs in a figure-eight while shaking its body.
The angle of the dance points the other bees toward the sun and the flowers.
The longer the bee waggles, the farther away the food is.
Thanks to this dance, thousands of bees can find a single flower patch.
Scientists study the waggle dance to understand how animals share information.
1) Why can’t bees just call out where the food is?
2) Why do scientists study the dance?
📖
Reading Worksheet
Cause & Effect: The Waggle Dance
Ages 8–11
♡
Cause & Effect: Rivers of Ice
Name
Score
Explain why each thing happened.
Rivers of Ice
A glacier is a river of ice that moves so slowly you cannot see it.
It forms high in the mountains where more snow falls than melts each year.
Over hundreds of years, the snow is pressed into thick, solid ice.
Gravity slowly pulls this heavy ice downhill, a little each day.
As the glacier grinds along, it carves valleys and scrapes rock into powder.
When the ice reaches warmer air, its front edge melts and feeds cold rivers.
Glaciers store much of the fresh water on Earth.
1) Why does a glacier form only where more snow falls than melts?
2) Why are glaciers important to people?
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Reading Worksheet
Cause & Effect: Rivers of Ice
Ages 8–11
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Cause & Effect: The Sky Was Her Road
Name
Score
Explain why each thing happened.
The Sky Was Her Road
Amelia grew up at a time when few people believed women should fly planes.
The first time she rode in an airplane, she knew the sky was where she belonged.
She worked long hours and saved every dollar to pay for flying lessons.
Soon she was breaking records that many pilots thought were impossible.
In 1932 she became the first woman to fly alone across the Atlantic Ocean.
The flight was cold and dangerous, and her plane was battered by storms.
Amelia’s courage encouraged girls everywhere to chase their own big dreams.
1) Why did Amelia keep flying despite the danger?
2) What kind of person was Amelia?
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Reading Worksheet
Cause & Effect: The Sky Was Her Road
Ages 8–11
♡
Cause & Effect: When a Mountain Wakes
Name
Score
Explain why each thing happened.
When a Mountain Wakes
For hundreds of years a volcano can sit quietly, seeming like an ordinary mountain.
Deep beneath it, though, melted rock called magma is always building up.
As pressure grows, the ground may swell and small earthquakes rumble.
Scientists watch these warning signs closely to keep nearby towns safe.
When the pressure finally becomes too great, the volcano erupts.
Ash, gas, and glowing lava burst out and reshape the land around it.
After the eruption, rich volcanic soil helps new plants grow.
1) Why is it useful to watch warning signs?
2) Why might people live near volcanoes despite the danger?
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Reading Worksheet
Cause & Effect: When a Mountain Wakes
Ages 8–11
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Cause & Effect: How Bridges Hold
Name
Score
Explain why each thing happened.
How Bridges Hold
A bridge must carry heavy loads without bending or breaking.
Engineers use clever shapes to spread the weight safely across the whole bridge.
A beam bridge is simple but can only cross short distances.
An arch bridge pushes the weight outward into strong supports at each end.
A suspension bridge hangs its road from huge cables held by tall towers.
The cables pull the weight up and carry it to the ground through the towers.
By matching the design to the distance, engineers build bridges that last for centuries.
1) Why do engineers use different designs?
2) Why does the shape of a bridge matter?
📖
Reading Worksheet
Cause & Effect: How Bridges Hold
Ages 8–11
♡
Cause & Effect: The Great Butterfly Journey
Name
Score
Explain why each thing happened.
The Great Butterfly Journey
Each autumn, millions of monarch butterflies begin an astonishing journey.
They fly south for thousands of miles to escape the freezing winter.
No single butterfly has ever made the trip before, yet they never get lost.
Scientists think monarchs use the sun and Earth’s magnetic field to steer.
They gather in the same few forests in Mexico year after year.
There they rest, clustered so thickly that the trees seem to turn orange.
When spring returns, a new generation begins the long journey back north.
1) Why is it surprising that monarchs don’t get lost?
2) Why do monarchs migrate at all?
📖
Reading Worksheet
Cause & Effect: The Great Butterfly Journey
Ages 8–11
♡
Cause & Effect: Sharks: Ancient Survivors
Name
Score
Explain why each thing happened.
Sharks: Ancient Survivors
Sharks have swum in Earth’s oceans for more than 400 million years.
They lived long before the dinosaurs and outlasted them too.
A shark’s skeleton is made of bendy cartilage, not heavy bone.
This makes sharks lighter and faster as they hunt.
Rows of sharp teeth are always ready; when one falls out, another moves forward.
Some sharks can sense the tiny electric signals given off by hidden prey.
These amazing adaptations have helped sharks survive for ages.
1) Why does cartilage help a shark hunt?
2) Why have sharks survived so long?
📖
Reading Worksheet
Cause & Effect: Sharks: Ancient Survivors
Ages 8–11
♡
Cause & Effect: The Vault of Seeds
Name
Score
Explain why each thing happened.
The Vault of Seeds
Deep inside a frozen mountain near the North Pole sits an unusual bank.
Instead of money, it stores millions of seeds from around the world.
The seeds are kept cold and dry so they can survive for hundreds of years.
If a crop is wiped out by disease, war, or weather, backups wait here.
Countries can send seeds to the vault and take copies when they are needed.
The vault is like an insurance policy for the world’s food.
It helps make sure that future farmers will still have plants to grow.
1) Why build the vault near the North Pole?
2) Why is the vault important for the future?
📖
Reading Worksheet
Cause & Effect: The Vault of Seeds
Ages 8–11
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