READING EXPLORER 1 FILE 7A DINOSAURS

When did dinosaurs go extinct?

• About 112 million years ago

• About 66 million years ago

• About 200 million years ago

• About 248 million years ago

What is a paleontologist?

• A flying reptile

• A dinosaur with large arms

• A scientist who studies plants and animals from millions of years ago

• A modern bird expert

What does the text suggest about the intelligence of some dinosaurs?

• All dinosaurs were very intelligent

• Only the large ones were smart

• A few smaller dinosaurs, like Troodon, had fairly large brains

• Dinosaurs had brains the size of insects

What does the reading say about Tyrannosaurus rex's speed?

• It was faster than a horse

• It probably moved as fast as an elephant

• It could fly

• It was the slowest dinosaur ever

According to the reading, what might T. rex have eaten?

• Only plants

• Only fish

• Dead animals

• Insects

Were pterosaurs dinosaurs?

• Yes, all flying reptiles were dinosaurs

• No, but they looked like dinosaurs

• Yes, especially Tupuxuara

• No, and they did not live during dinosaur times

Tupuxuara could possibly fly a distance of:

• 8,000 kilometers

• 800 kilometers

• 80 kilometers

• 8 kilometers

Why do scientists think dinosaurs went extinct?

• A disease spread

• Humans hunted them

• Climate change made the Earth too cold

• A comet hit the Earth

What do scientists believe about birds?

• They are unrelated to dinosaurs

• They are direct descendants of dinosaurs

• They evolved from sea reptiles

• They replaced dinosaurs

Which of the following animals was a sea predator?

• Troodon

• Tupuxuara

• Dakosaurus

• Tyrannosaurus