M. and fellow classmates, the topic of my speech is dinosaurs. They lived millions of years ago. The word dinosaur comes
from the Greek words “deinos” meaning terrible and “sauros” meaning
lizard. There were many different
kinds of dinosaurs. The
Brontosaurus was huge, the length of three school buses.
The Brontosaurus had a very long neck and tail.
Tyrannosaurus Rex was a carnivore, which means he ate meat.
Stegosaurus was a large herbivore, which means he ate plants, leaves and
even seeds. The Stegosaurus had two
rows of thin, bony plates down his back. Some
scientists believe the dinosaurs died out because of a plague or disease that
swept the Earth, killing everything. Another
idea that some scientists believe is that the temperature became very cold and
the dinosaurs couldn’t survive. Some
scientists say a supernova could be the reason the dinosaurs are extinct.
A supernova is when a large star, bigger than the sun, becomes unstable
and explodes. These are only a few
possible reasons for the extinction of the dinosaurs.
ASHLEY J. - Grade 3