- asteroid /AS-tuh-roid/
- fragile /FRAJ-uhl/
- vulnerable /VUHL-ner-uh-buhl/
- perish /PER-ish/
- blast /blast/
[noun] – one of many large rocks that circle the sun
Scientists are hopeful that an asteroid will provide information on the origins of life on Earth.
[adjective] – A fragile object is easily damaged or broken
Be careful with the vase; it is very fragile.
[adjective] – able to be easily physically or mentally hurt, influenced, or attacked
Tourists are more vulnerable to attacks because they are unfamiliar with the city’s danger zones.
[verb] – to die, especially in an accident or by being killed, or to be destroyed
Thousands of refugees would perish from hunger and neglect if they did not receive this help.
[verb] – to explode or destroy something or someone with explosives, or to break through or hit something with a similar, very strong force
A bomb blasted, so the wall was destroyed.
This was possibly especially true for animals residing in the Southern Hemisphere, where the impact would have occurred in autumn or early winter. “In the Southern Hemisphere, many organisms would have been in hibernation or sheltering. That could have helped them,” says Melanie During from Uppsala University, Sweden. “In spring, you expect animals to be tending to their offspring which are very fragile, or perhaps they are still tending to eggs, waiting for them to hatch or be looking for food. That puts them in a vulnerable position.” Ms. During recently released her findings from a study of fossil paddlefish and sturgeon found near Tanis, North Dakota, which clearly suggest that the fish perished in the spring. Tanis is the site that preserves not only the day a 12km-wide asteroid blasted into the globe 66 million years ago but also the minutes and hours that followed the horrific impact.
- Have you watched a dinosaur movie? What do you think about it?
- In your view, how are asteroids formed?
- If you were to change something about dinosaurs, what would it be?
- Do you agree that an asteroid wiped off the dinosaurs a long time ago?
- Do you think we can do something about falling asteroids? Why or why not?