Font size
WorksheetsDay of Doom Practice Quiz
Total questions: 16
Worksheet time: 11mins
What is the MOST LIKELY reason the author begins the article with a dramatic scene?
to create suspense
to write a fiction story
to create a calm feeling
to give readers instructions
How do scientists know dinosaurs disappeared 66 million years ago?
All dinosaur bones are 66 million years old.
Records from 66 million years ago say so.
They studied animals that have lived in the past 66 million years.
They found no dinosaur fossils in layers of rock formed after a disaster that happened 66 million years ago.
In the sentence “It was well known that animals could become extinct,” the word extinct describes _______.
animals that are growing in size
animals that no longer exist
animals that are part of a group
animals moving to another area
Which line from the text best supports the definition of extinct?
“…dinosaurs had walked the earth for more than 150 million years.”
“They started out small and lightweight.”
“T. rex and other dinosaurs ruled over the land…”
“Some scientists thought that dinosaurs had died out because the planet had gotten too cold.”
The sentence “…he was known for thinking outside the box,” tells you that Luis Alvarez explored ideas _______.
in great detail
by following the rules
in new and different ways
others had already studied
What two things did Walter Alvarez find in the layer of clay that formed at the time dinosaurs disappeared? Choose TWO.
iridium
dinosaur bones
seeds and plants
tiny balls of glass
Why did mammals have the chance to take over the world?
Some birds survived.
The dinosaurs were gone.
T. rex ate other kinds of animals.
Fish and turtles lived underground.
Which sentence would be BEST to include in a summary of the article?
Bones, eggs, claws, and teeth can become fossils.
Early dinosaurs were small, about the size of dogs.
Walter Alvarez discovered that an asteroid killed the dinosaurs.
A T. rex had more than 50 razor-sharp teeth as long as bananas.
How does the timeline “Earth: A Brief History” on the top of pages 8–9 help readers better understand the article?
It provides a chronological context for the events discussed.
It lists the main points of the article.
It offers a summary of the article.
It includes additional information not found in the article.
What were the immediate effects of the giant asteroid that crashed into Earth? What were the later effects?
Immediate effects included massive fires and a 'nuclear winter' scenario; later effects included mass extinction of all living things.
Immediate effects included a rise in sea levels; later effects included the formation of new continents.
Immediate effects included the creation of new species; later effects included the development of human civilization.
Immediate effects included the extinction of dinosaurs; later effects included the rise of mammals.
He’s a (a) , a scientist who studies ancient animals and plants.
Rocks get older as you move deeper and deeper underground, each layer a different chapter in Earth’s past. Some contain (a) of long-gone animals and plants.
Some scientists thought that dinosaurs had become (a) , died out, because the planet had gotten too cold.
For decades, scientists had believed that all changes on Earth happen slowly or (a) —that new animals and plants appear and die out over millions of years.
Walter’s (a) , idea of how dinosaurs became extinct, was a big deal. At first, it was controversial. Most scientists did not accept it.
The most convincing clue of all was found: an enormous (a) mostly buried under the sea off the coast of Mexico, dating to 66 million years ago.
