record breakers
OF THE
DINOSAUR WORLD
Welcome to the Record Breakers of the Dinosaur World worksheet!
Here you’ll practice new dinosaur words, test what you’ve learned, and discover even more amazing facts. Let’s get started!
How to Read Some of the Words in the Book
Dinosaur Names
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Allosaurus → AL-oh-SOR-us
A large meat-eating dinosaur that hunted other dinosaurs. -
Ankylosaurus → ang-KYE-loh-SOR-us
A heavily armored plant-eater with thick bony plates and a powerful tail club. -
Argentinosaurus → ar-jen-TEE-noh-SOR-us
One of the biggest and heaviest dinosaurs ever discovered. -
Diplodocus → dih-PLOD-oh-kus
A long plant-eating dinosaur with an extremely long, whip-like tail. -
Mamenchisaurus → muh-MEN-chee-SOR-us
A plant-eater with the longest neck of any known dinosaur. -
Microraptor → MY-kroh-RAP-ter
A small dinosaur with four feathered wings that glided through forests. -
Ornithomimus → or-NITH-oh-MY-mus
A fast-running dinosaur built for speed, similar to an ostrich. -
Pachycephalosaurus → pak-ee-SEF-uh-loh-SOR-us
A small dinosaur with an extremely thick, domed skull. -
Parasaurolophus → pair-uh-SOR-uh-LOH-fus
A plant-eater with a long, curved head crest used to make loud sounds. -
Stegosaurus → STEG-oh-SOR-us
A plant-eating dinosaur with large plates on its back and spikes on its tail. -
Supersaurus → SOO-per-SOR-us
A very long plant-eater that holds the record for length. -
Therizinosaurus → thair-uh-ZIN-oh-SOR-us
A strange-looking plant-eater with enormous claws used for feeding and defense. -
Triceratops → try-SAIR-uh-tops
A horned plant-eater with three horns and a strong skull for defense. -
Tyrannosaurus rex → tih-RAN-uh-SOR-us REX
A powerful meat-eater with massive jaws and the strongest bite of any dinosaur.
Science Words
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Cretaceous → krih-TAY-shus
A time period near the end of the Age of Dinosaurs, when many famous dinosaurs lived. -
fossil → FOSS-uhl
The remains or marks of plants or animals from long ago, preserved in rock. -
Jurassic → juh-RASS-ik
A time period when many large dinosaurs lived, before the Cretaceous period. -
paleontologist → PAY-lee-on-TOL-uh-jist
A scientist who studies fossils and ancient life. -
paleontology → PAY-lee-on-TOL-uh-jee
The study of fossils and ancient life. -
vertebrae → VER-tuh-bray
The small bones that make up the spine and neck.
True or False
Read each sentence and choose True or False.
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Dinosaurs lived in a world that was always the same and never changed.
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During the age of dinosaurs, the continents were joined together.
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Fossils are always complete skeletons found in the ground.
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Some dinosaurs survived by becoming faster, longer, or better protected.
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Dinosaur records can change when new fossils are discovered.
Pick the Right Word
Choose the correct word from the box and write it in the blank boxes.
Word Bank:
fossils · paleontologists · evidence · record breaker · vertebrae
are clues from the past, such as bones, teeth, or footprints.
Scientists who study fossils are called
Scientists use to make careful estimates about dinosaurs.
The small bones that make up the spine are called
A dinosaur that holds the biggest, longest, or strongest record is a
Match the Dinosaur to Its Record
Match each dinosaur to the record it is known for.
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The fastest dinosaur
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Best four-winged glider
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The longest dinosaur
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The biggest and heaviest dinosaur
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The loudest call
How Do Scientists Know?
Choose the right answer.
Why do scientists compare dinosaur bones with modern animals?
Which tools do scientists use to study fossils without breaking them?
Why are dinosaur records sometimes uncertain?
Survival Strategies Check
Read each strategy and write the dinosaur name that matches it.
Word Bank:
Pachycephalosaurus · Mamenchisaurus · Ankylosaurus · Triceratops · Ornithomimus
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Used armor and a tail club for defense →
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Used speed instead of strength to survive →
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Used a very long neck to reach food →
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Used a thick skull for protection →
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Used long horns to defend itself →
Did you have fun?
Then, don’t forget to check out the rest of the Dinosaur Series!