Check Your Understanding

Choose the word or phrase that matches each definition.

1.Capable of exploding or bursting suddenly and violently — this word or phrase is .
2.The layer of gases surrounding a planet, such as the Earth — this word or phrase is .
3.A piece of rock or debris from space that burns as it enters a planet's atmosphere — this word or phrase is .
4.Caused something to break or shatter suddenly, often from pressure — this word or phrase is .
5.Causing harm or injury to something — this word or phrase is .
6.People walking, especially in a street or public area — this word or phrase is .
7.The outer or topmost layer of something — this word or phrase is .
8.To take in or soak up something, such as force or energy — this word or phrase is .
9.Happened; took place — this word or phrase is .
10.Extremely large in size or amount — this word or phrase is .
11.Flattening or destroying something completely, reducing it to the ground — this word or phrase is .
12.Far away from cities or populated areas; isolated — this word or phrase is .
13.Flattened or destroyed something completely — this word or phrase is .
14.The chance or probability that something will happen — this word or phrase is .
15.The act of destroying something; severe damage — this word or phrase is .
16.Widespread and severe destruction or damage — this word or phrase is .
17.Following and monitoring the movement or progress of something — this word or phrase is .
18.Up until now; so far — this word or phrase is .
19.Discovered or noticed the presence of something — this word or phrase is .
20.To cause something to change direction, especially to avoid a collision — this word or phrase is .
21.The action of one object hitting another with force; a collision — this word or phrase is .