Discover the Dinosaurs
Worksheet 14
Name: _______________ Date: __________________________________
1º Read the information and underline the verbs in past.
Millions of years ago, long before there were any
people, there were dinosaurs. Dinosaurs were one of
several kinds of prehistoric reptiles that lived
during the Mesozoic Era, the "Age of Reptiles."
When the dinosaurs lived, the Earth's continents
were jammed together into a supercontinent called
Pangaea and the Earth was warmer than it is now.
DESCRIPTION OF THE DINOSAURS
The largest dinosaurs were over 30 m long and up to 15 m tall (like Ultrasaurus and
Brachiosaurus). The smallest dinosaurs, like Compsognathus, were about the size of a
chicken. Most dinosaurs were in-between.
Dinosaurs were similar to reptiles, so they were born from eggs.
There were lots of different kinds of dinosaurs that lived at different times.
 Some walked on two legs (they were bipedal), some walked on four (they were
quadrupedal). Some could do both.
 Some were speedy (like the Velociraptor), and some were slow.
 Some had horns (like Triceratops), crests or spikes.
 Some had thick, bumpy skin, and some even had primitive feathers.
Most dinosaurs were plant-eaters (also called herbivores). For example, Triceratops was a
plant-eating dinosaur. Some dinosaurs were meat-eaters (also called carnivores). For
example, T. Rex was a meat-eating dinosaur.
THE EXTINCTION OF THE DINOSAURS
The dinosaurs dominated the Earth for over 165 million
years during the Mesozoic Era, but mysteriously went
extinct 65 million years ago. It was probably because of the
environmental changes brought by an asteroid hitting the
Earth. Paleontologists study their fossil remains to learn
about the amazing prehistoric world of dinosaurs.
2º Answer the questions about the text above.
a) Why did dinosaurs become extinct? ________________________________________
__________________________________________________________________
b) When did they become extinct? ___________________________________________
c) For how long were dinosaurs on planet Earth? _________________________________
3º Read the information and unscramble the words.
UNSCRAMBLE THE WORDS
1. VOBRHERIE Most dinosaurs ate plants. What is another word
for "plant-eater"?
2. NIOCARREVS dinosaurs were meat-eaters. What is another
word for "meat-eater"?
3. FOLISSS All that's left of the dinosaurs bodies today are these
hard, rock-like objects.
ANSWER....
.
.
.
4. ONTPALEOISTLOG This is the name of the type of scientist .
who studies dinosaurs and other fossils.
5. ROIDASTE The extinction of the dinosaurs and many other
species of animals was probably caused by this type of celestial body
colliding with the Earth 65 million years ago.
6. PEDBIAL Some dinosaurs walked on two legs. What is another
word for walking on two legs?
.
.
7. PEDALDRUQUA Some dinosaurs walked on four legs. What is .
another word for walking on four legs?