The World of Dinosaurs: Life in a Prehistoric Era

Dinosaurs lived between 245 and 66 million years ago in a hot climate without polar ice caps. The Earth had diverse environments, from deserts to rainforests. Dinosaurs, mostly reptiles, needed warmth from the sun. Over 700 species have been identified, with the T Rex being a notable carnivore. T Rex had large jaws with serrated teeth, a keen sense of smell, and was both a predator and scavenger. It could move at speeds of 10 to 25 mph and left distinct footprints. T Rex fossils are found in North America and Asia.

During which time period did dinosaurs primarily exist on Earth?

• Between 100 and 50 million years ago

• Between 500 and 200 million years ago

• Between 245 and 66 million years ago

• Between 300 and 100 million years ago

What was the climate like during the time dinosaurs roamed the Earth?

• Cold with polar ice caps

• Mild with seasonal changes

• Temperate with frequent rain

• Hot with no polar ice caps

What does the name 'Tyrannosaurus Rex' signify?

• Swift predator

• King of the dinosaurs

• Forest dweller

• Giant lizard

What was a notable feature of the T Rex's hunting ability?

• Its camouflage skills

• Its ability to fly

• Its keen sense of smell

• Its ability to swim

Where have T Rex fossils and footprints been discovered?

• Only in Africa

• In Australia and Antarctica

• In Europe and South America

• In Montana, New Mexico, Wyoming, Canada, and Asia